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<!-- Weave of 'Pathnames' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "index.html" > foundation< / a > < / li > < li > < a href = "index.html#3" > Chapter 3: The Operating System< / a > < / li > < li > < b > Pathnames< / b > < / li > < / ul > < / div >
< p class = "purpose" > Locations of hypothetical or real directories in the filing system.< / p >
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< ul class = "toc" > < li > < a href = "3-pth.html#SP1" > § 1. About pathnames< / a > < / li > < li > < a href = "3-pth.html#SP2" > § 2. Home directory< / a > < / li > < li > < a href = "3-pth.html#SP3" > § 3. Installation directory< / a > < / li > < li > < a href = "3-pth.html#SP4" > § 4. Creation< / a > < / li > < li > < a href = "3-pth.html#SP5" > § 5. Text to pathnames< / a > < / li > < li > < a href = "3-pth.html#SP6" > § 6. Writer< / a > < / li > < li > < a href = "3-pth.html#SP7" > § 7. Relative pathnames< / a > < / li > < li > < a href = "3-pth.html#SP8" > § 8. Relative URLs< / a > < / li > < li > < a href = "3-pth.html#SP9" > § 9. Existence in the file system< / a > < / li > < li > < a href = "3-pth.html#SP10" > § 10. Directory synchronisation< / a > < / li > < / ul > < hr class = "tocbar" >
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< p class = "commentary firstcommentary" > < a id = "SP1" > < / a > < b > § 1. About pathnames. < / b > We use the word "pathname" to mean a file-system location of a directory,
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and "filename" to mean a location of a file. For example:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > /Users/rblackmore/Documents/Fireball< / span >
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< / pre >
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< p class = "commentary" > is a pathname, whereas
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > /Users/rblackmore/Documents/Fireball/whoosh.aiff< / span >
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< / pre >
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< p class = "commentary" > is a filename. All references to directory locations in the filing system will be
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held internally as < span class = "extract" > < span class = "extract-syntax" > pathname< / span > < / span > objects, and all references to file locations as
< span class = "extract" > < span class = "extract-syntax" > filename< / span > < / span > objects. Once created, these are never destroyed or modified,
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so that it's safe to store a pointer to a pathname or filename anywhere.
< / p >
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< p class = "commentary" > Note that a pathname may well be hypothetical, that is, it may well
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describe a directory which doesn't exist on disc.
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< / p >
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< p class = "commentary" > A full path is a linked list, but reverse-ordered: thus,
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > /Users/rblackmore/Documents/< / span >
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< / pre >
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< p class = "commentary" > would be represented as a pointer to the < span class = "extract" > < span class = "extract-syntax" > pathname< / span > < / span > for "Documents", which
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in turn points to one for "rblackmore", which in turn points to "/Users".
Thus the root of the filing system is represented by the null pointer.
< / p >
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< p class = "commentary" > Each < span class = "extract" > < span class = "extract-syntax" > pathname< / span > < / span > can represent only a single level in the hierarchy, and
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its textual name is not allowed to contain the < span class = "extract" > < span class = "extract-syntax" > FOLDER_SEPARATOR< / span > < / span > character,
with just one exception: the < span class = "extract" > < span class = "extract-syntax" > pathname< / span > < / span > at the end of the chain is allowed
to begin with < span class = "extract" > < span class = "extract-syntax" > FOLDER_SEPARATOR< / span > < / span > to denote that it's at the root of the
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host file system.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > intermediate< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pathname_of_parent< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > known_to_exist< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > corresponds to a directory in the filing system< / span >
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< span class = "plain-syntax" > < / span > < span class = "constant-syntax" > MEMORY_MANAGEMENT< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
< ul class = "endnotetexts" > < li > The structure pathname is accessed in 3/fln and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" > < / a > < b > § 2. Home directory. < / b > We get the path to the user's home directory from the environment variable
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< span class = "extract" > < span class = "extract-syntax" > HOME< / span > < / span > , if it exists.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > home_path< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::start< / span > < button class = "popup" onclick = "togglePopup('usagePopup1')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup1" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::start< / span > < / span > :< br / > Foundation Module - < a href = "1-fm.html#SP8" > § 8< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > home< / span > < span class = "plain-syntax" > = (< / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *) (< / span > < a href = "1-wp.html#SP4" class = "function-link" > < span class = "function-syntax" > Platform::getenv< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "HOME"< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > home< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > H< / span > < span class = "plain-syntax" > = < / span > < a href = "4-sm.html#SP4" class = "function-link" > < span class = "function-syntax" > Str::new_from_locale_string< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > home< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > home_path< / span > < span class = "plain-syntax" > = < / span > < a href = "3-pth.html#SP5" class = "function-link" > < span class = "function-syntax" > Pathnames::from_text< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > H< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > home_path< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > known_to_exist< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3" > < / a > < b > § 3. Installation directory. < / b > < / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > installation_path< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::set_installation_path< / span > < button class = "popup" onclick = "togglePopup('usagePopup2')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup2" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::set_installation_path< / span > < / span > :< br / > Command Line Arguments - < a href = "3-cla.html#SP13_1" > § 13.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > installation_path< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Pathnames::installation_path< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > const< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > V< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > def< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > installation_path< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > installation_path< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wchar_t< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > [4*< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > [0] = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < a href = "1-wp.html#SP5" class = "function-link" > < span class = "function-syntax" > Platform::where_am_i< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > *< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > [0]) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > v< / span > < span class = "plain-syntax" > = < / span > < a href = "4-sm.html#SP4" class = "function-link" > < span class = "function-syntax" > Str::new_from_wide_string< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > where< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > filename< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > F< / span > < span class = "plain-syntax" > = < / span > < a href = "3-fln.html#SP3" class = "function-link" > < span class = "function-syntax" > Filenames::from_text< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > v< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < a href = "3-fln.html#SP6" class = "function-link" > < span class = "function-syntax" > Filenames::up< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > F< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "4-sm.html#SP19" class = "function-link" > < span class = "function-syntax" > Str::eq< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > intermediate< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "Tangled"< / span > < span class = "plain-syntax" > )))< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pathname_of_parent< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > V< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > = < / span > < a href = "1-wp.html#SP4" class = "function-link" > < span class = "function-syntax" > Platform::getenv< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > V< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > [0])) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > v< / span > < span class = "plain-syntax" > = < / span > < a href = "4-sm.html#SP4" class = "function-link" > < span class = "function-syntax" > Str::new_from_locale_string< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-pth.html#SP5" class = "function-link" > < span class = "function-syntax" > Pathnames::from_text< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > v< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > def< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-pth.html#SP5" class = "function-link" > < span class = "function-syntax" > Pathnames::from_text< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > def< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP4" > < / a > < b > § 4. Creation. < / b > A subdirectory is made by taking an existing pathname (or possible < span class = "extract" > < span class = "extract-syntax" > NULL< / span > < / span > ) and
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then going one level deeper, using the supplied name.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Pathnames::down< / span > < button class = "popup" onclick = "togglePopup('usagePopup3')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup3" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::down< / span > < / span > :< br / > Epub Ebooks - < a href = "5-ee.html#SP6" > § 6< / a > , < a href = "5-ee.html#SP6_2" > § 6.2< / a > < br / > Web Structure - < a href = "8-ws.html#SP7_3_3_2" > § 7.3.3.2< / a > , < a href = "8-ws.html#SP7_2_2_4" > § 7.2.2.4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > dir_name< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-pth.html#SP4" class = "function-link" > < span class = "function-syntax" > Pathnames::primitive< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dir_name< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > , < / span > < a href = "4-sm.html#SP8" class = "function-link" > < span class = "function-syntax" > Str::len< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > dir_name< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Pathnames::primitive< / span > < button class = "popup" onclick = "togglePopup('usagePopup4')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup4" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::primitive< / span > < / span > :< br / > < a href = "3-pth.html#SP5" > § 5< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > str< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > par< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pathname_of_parent< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > par< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > known_to_exist< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > -< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > < = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "empty intermediate pathname"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > intermediate< / span > < span class = "plain-syntax" > = < / span > < a href = "4-sm.html#SP2" class = "function-link" > < span class = "function-syntax" > Str::new_with_capacity< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > -< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > +1);< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > str< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > < < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++)< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PUT_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > intermediate< / span > < span class = "plain-syntax" > , < / span > < a href = "4-sm.html#SP13" class = "function-link" > < span class = "function-syntax" > Str::get< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-sm.html#SP10" class = "function-link" > < span class = "function-syntax" > Str::at< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > str< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > )));< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP5" > < / a > < b > § 5. Text to pathnames. < / b > The following takes a text of a name and returns a pathname,
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possibly relative to the home directory. Empty directory names are ignored
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except possibly for an initial slash, so for example < span class = "extract" > < span class = "extract-syntax" > paris/roubaix< / span > < / span > ,
< span class = "extract" > < span class = "extract-syntax" > paris//roubaix< / span > < / span > and < span class = "extract" > < span class = "extract-syntax" > paris/roubaix/< / span > < / span > are indistinguishable here, but
< span class = "extract" > < span class = "extract-syntax" > /paris/roubaix< / span > < / span > is different.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Pathnames::from_text< / span > < button class = "popup" onclick = "togglePopup('usagePopup5')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup5" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::from_text< / span > < / span > :< br / > < a href = "3-pth.html#SP2" > § 2< / a > , < a href = "3-pth.html#SP3" > § 3< / a > < br / > Command Line Arguments - < a href = "3-cla.html#SP13_1" > § 13.1< / a > , < a href = "3-cla.html#SP13_1_1" > § 13.1.1< / a > < br / > Filenames - < a href = "3-fln.html#SP3" > § 3< / a > < br / > Epub Ebooks - < a href = "5-ee.html#SP7_4" > § 7.4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < a href = "3-pth.html#SP5" class = "function-link" > < span class = "function-syntax" > Pathnames::from_text_relative< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Pathnames::from_text_relative< / span > < button class = "popup" onclick = "togglePopup('usagePopup6')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup6" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::from_text_relative< / span > < / span > :< br / > Web Modules - < a href = "8-wm.html#SP7" > § 7< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > at< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pos< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-sm.html#SP13" class = "function-link" > < span class = "function-syntax" > Str::get< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-sm.html#SP10" class = "function-link" > < span class = "function-syntax" > Str::start< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > ))) & & (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > < < / span > < a href = "4-sm.html#SP8" class = "function-link" > < span class = "function-syntax" > Str::len< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++)< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-sm.html#SP13" class = "function-link" > < span class = "function-syntax" > Str::get< / span > < / a > < span class = "plain-syntax" > (< / span > < a href = "4-sm.html#SP10" class = "function-link" > < span class = "function-syntax" > Str::at< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > )) == < / span > < span class = "constant-syntax" > FOLDER_SEPARATOR< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > > < / span > < span class = "identifier-syntax" > pos< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > at< / span > < span class = "plain-syntax" > = < / span > < a href = "3-pth.html#SP4" class = "function-link" > < span class = "function-syntax" > Pathnames::primitive< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pos< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > at< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > pos< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > +1;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > > < / span > < span class = "identifier-syntax" > pos< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > at< / span > < span class = "plain-syntax" > = < / span > < a href = "3-pth.html#SP4" class = "function-link" > < span class = "function-syntax" > Pathnames::primitive< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > path< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pos< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > at< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > at< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP6" > < / a > < b > § 6. Writer. < / b > Conversely, by the miracle of depth-first recursion:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::writer< / span > < button class = "popup" onclick = "togglePopup('usagePopup7')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup7" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::writer< / span > < / span > :< br / > Foundation Module - < a href = "1-fm.html#SP8_1" > § 8.1< / a > < br / > Filenames - < a href = "3-fln.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > format_string< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > vP< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *) < / span > < span class = "identifier-syntax" > vP< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > divider< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > FOLDER_SEPARATOR< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > format_string< / span > < span class = "plain-syntax" > [0] == < / span > < span class = "character-syntax" > '/'< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > divider< / span > < span class = "plain-syntax" > = < / span > < span class = "character-syntax" > '/'< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) < / span > < a href = "3-pth.html#SP6" class = "function-link" > < span class = "function-syntax" > Pathnames::writer_r< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > divider< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "."< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::writer_r< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > divider< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pathname_of_parent< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < a href = "3-pth.html#SP6" class = "function-link" > < span class = "function-syntax" > Pathnames::writer_r< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pathname_of_parent< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > divider< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PUT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > divider< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%S"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > intermediate< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP7" > < / a > < b > § 7. Relative pathnames. < / b > Occasionally we want to shorten a pathname relative to another one:
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for example,
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > /Users/rblackmore/Documents/Fireball/tablature< / span >
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< / pre >
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< p class = "commentary" > relative to
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > /Users/rblackmore/Documents/< / span >
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< / pre >
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< p class = "commentary" > would be
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > Fireball/tablature< / span >
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< / pre >
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< p class = "commentary" > Note that this does not correctly handle symlinks, < span class = "extract" > < span class = "extract-syntax" > .< / span > < / span > , < span class = "extract" > < span class = "extract-syntax" > ..< / span > < / span > and so on,
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so it's probably not wise to use it with filenames typed in at the command
line.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::to_text_relative< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > rt< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pt< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > rt< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > R< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pt< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > n< / span > < span class = "plain-syntax" > = < / span > < a href = "4-sm.html#SP8" class = "function-link" > < span class = "function-syntax" > Str::len< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pt< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-sm.html#SP21" class = "function-link" > < span class = "function-syntax" > Str::prefix_eq< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > rt< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pt< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > n< / span > < span class = "plain-syntax" > )) & & (< / span > < a href = "4-sm.html#SP13" class = "function-link" > < span class = "function-syntax" > Str::get_at< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > rt< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > n< / span > < span class = "plain-syntax" > )==< / span > < span class = "constant-syntax" > FOLDER_SEPARATOR< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < a href = "4-sm.html#SP25" class = "function-link" > < span class = "function-syntax" > Str::delete_n_characters< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > rt< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > n< / span > < span class = "plain-syntax" > +1);< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%S"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > rt< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "pathname not relative to pathname"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > rt< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pt< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Pathnames::up< / span > < button class = "popup" onclick = "togglePopup('usagePopup8')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup8" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::up< / span > < / span > :< br / > < a href = "3-pth.html#SP8" > § 8< / a > < br / > Web Modules - < a href = "8-wm.html#SP7" > § 7< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "can't go up from root directory"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pathname_of_parent< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > Pathnames::directory_name< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > intermediate< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP8" > < / a > < b > § 8. Relative URLs. < / b > Suppose a web page in the directory at < span class = "extract" > < span class = "extract-syntax" > from< / span > < / span > wants to link to a page in
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the directory < span class = "extract" > < span class = "extract-syntax" > to< / span > < / span > . The following composes a minimal-length URL to do so:
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possibly, if they are in fact the same directory, an empty one.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::relative_URL< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > found< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > & & (< / span > < span class = "identifier-syntax" > found< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > FALSE< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > = < / span > < a href = "3-pth.html#SP7" class = "function-link" > < span class = "function-syntax" > Pathnames::up< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PT< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PT< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > q_up_count< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > & & (< / span > < span class = "identifier-syntax" > found< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > FALSE< / span > < span class = "plain-syntax" > ); < / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > = < / span > < a href = "3-pth.html#SP7" class = "function-link" > < span class = "function-syntax" > Pathnames::up< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > )) {< / span >
2020-04-21 16:55:17 +00:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > QT< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > QT< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > );< / span >
2020-04-21 23:52:25 +00:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-sm.html#SP19" class = "function-link" > < span class = "function-syntax" > Str::eq< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PT< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > QT< / span > < span class = "plain-syntax" > )) {< / span >
2020-04-21 16:55:17 +00:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > =0; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > < < / span > < span class = "identifier-syntax" > q_up_count< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++) < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "../"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > FPT< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > FPT< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > );< / span >
2020-04-21 23:52:25 +00:00
< span class = "plain-syntax" > < / span > < a href = "4-sm.html#SP26" class = "function-link" > < span class = "function-syntax" > Str::substr< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > , < / span > < a href = "4-sm.html#SP10" class = "function-link" > < span class = "function-syntax" > Str::at< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > FPT< / span > < span class = "plain-syntax" > , < / span > < a href = "4-sm.html#SP8" class = "function-link" > < span class = "function-syntax" > Str::len< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PT< / span > < span class = "plain-syntax" > ) + < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ), < / span > < a href = "4-sm.html#SP10" class = "function-link" > < span class = "function-syntax" > Str::end< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > FPT< / span > < span class = "plain-syntax" > ));< / span >
2020-04-21 16:55:17 +00:00
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > found< / span > < span class = "plain-syntax" > = < / span > < span class = "constant-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > QT< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > q_up_count< / span > < span class = "plain-syntax" > ++;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PT< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > found< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > FALSE< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > from< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > = < / span > < a href = "3-pth.html#SP7" class = "function-link" > < span class = "function-syntax" > Pathnames::up< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Q< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "../"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > to< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "%S"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < a href = "4-sm.html#SP8" class = "function-link" > < span class = "function-syntax" > Str::len< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > ) > < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "4-sm.html#SP13" class = "function-link" > < span class = "function-syntax" > Str::get_last_char< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > ) != < / span > < span class = "character-syntax" > '/'< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "/"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > url< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP9" > < / a > < b > § 9. Existence in the file system. < / b > Just because we have a pathname, it doesn't follow that any directory exists
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on the file system with that path.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::create_in_file_system< / span > < button class = "popup" onclick = "togglePopup('usagePopup9')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup9" > Usage of < span class = "code-font" > < span class = "function-syntax" > Pathnames::create_in_file_system< / span > < / span > :< br / > Epub Ebooks - < a href = "5-ee.html#SP6" > § 6< / a > , < a href = "5-ee.html#SP6_2" > § 6.2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > TRUE< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > the root of the file system always exists< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > known_to_exist< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > transcoded_pathname< / span > < span class = "plain-syntax" > [4*< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-sm.html#SP6" class = "function-link" > < span class = "function-syntax" > Str::copy_to_locale_string< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > transcoded_pathname< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > *< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > known_to_exist< / span > < span class = "plain-syntax" > = < / span > < a href = "1-wp.html#SP7" class = "function-link" > < span class = "function-syntax" > Platform::mkdir< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > transcoded_pathname< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > known_to_exist< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP10" > < / a > < b > § 10. Directory synchronisation. < / b > Both pathnames here represent directories which do exist. The function makes
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the < span class = "extract" > < span class = "extract-syntax" > dest< / span > < / span > tree an exact copy of the < span class = "extract" > < span class = "extract-syntax" > source< / span > < / span > tree (and therefore deletes
anything different which was originally in < span class = "extract" > < span class = "extract-syntax" > dest< / span > < / span > ).
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > Pathnames::rsync< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > source< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > pathname< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > dest< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > transcoded_source< / span > < span class = "plain-syntax" > [4*< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > source< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-sm.html#SP6" class = "function-link" > < span class = "function-syntax" > Str::copy_to_locale_string< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > transcoded_source< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > *< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > char< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > transcoded_dest< / span > < span class = "plain-syntax" > [4*< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > ];< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEMPORARY_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn2< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn2< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "%p"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > dest< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-sm.html#SP6" class = "function-link" > < span class = "function-syntax" > Str::copy_to_locale_string< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > transcoded_dest< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > pn2< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > *< / span > < span class = "constant-syntax" > MAX_FILENAME_LENGTH< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DISCARD_TEXT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > pn2< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "1-pp.html#SP14" class = "function-link" > < span class = "function-syntax" > Platform::rsync< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > transcoded_source< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > transcoded_dest< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
< ul class = "progressbar" > < li class = "progressprev" > < a href = "3-cla.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-abgtf.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-fm.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-dl.html" > 2< / a > < / li > < li class = "progresscurrentchapter" > 3< / li > < li class = "progresssection" > < a href = "3-em.html" > em< / a > < / li > < li class = "progresssection" > < a href = "3-cla.html" > cla< / a > < / li > < li class = "progresscurrent" > pth< / li > < li class = "progresssection" > < a href = "3-fln.html" > fln< / a > < / li > < li class = "progresssection" > < a href = "3-cf.html" > cf< / a > < / li > < li class = "progresssection" > < a href = "3-shl.html" > shl< / a > < / li > < li class = "progresssection" > < a href = "3-drc.html" > drc< / a > < / li > < li class = "progresssection" > < a href = "3-tm.html" > tm< / a > < / li > < li class = "progresschapter" > < a href = "4-chr.html" > 4< / a > < / li > < li class = "progresschapter" > < a href = "5-htm.html" > 5< / a > < / li > < li class = "progresschapter" > < a href = "6-bf.html" > 6< / a > < / li > < li class = "progresschapter" > < a href = "7-vn.html" > 7< / a > < / li > < li class = "progresschapter" > < a href = "8-ws.html" > 8< / a > < / li > < li class = "progressnext" > < a href = "3-fln.html" > ❯ < / a > < / li > < / ul > < / div >
< / nav > <!-- End of weave -->
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< / main >
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< / body >
< / html >
