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Article contents:== Outdated egg! This is an egg for CHICKEN 4, the unsupported old release. You're almost certainly looking for [[/eggref/5/symbol-utils|the CHICKEN 5 version of this egg]], if it exists. If it does not exist, there may be equivalent functionality provided by another egg; have a look at the [[https://wiki.call-cc.org/chicken-projects/egg-index-5.html|egg index]]. Otherwise, please consider porting this egg to the current version of CHICKEN. [[tags: egg]] == symbol-utils [[toc:]] == Documentation === Argument Conventions {{SYM}} is a {{symbol}} {{OBJ}} is an arbitrary Scheme {{object}} A printname is the string form of a symbol. === symbol-value-utils ==== Usage <enscript language=scheme> (require-extension symbol-value-utils) </enscript> ==== unbound-value <macro>(unbound-value) -> #<unbound></macro> ==== unbound-value? <macro>(unbound-value? OBJ) -> boolean</macro> ==== unbound? <macro>(unbound? SYM) -> boolean</macro> ==== symbol-value <macro>(symbol-value SYM [DEF]) -> *</macro> Returns {{SYM}} binding or {{DEF}} when unbound. ==== unspecified-value <procedure>(unspecified-value) -> #<unspecified></procedure> ==== unspecified-value? <macro>(unspecified-value? OBJ) -> boolean</macro> ==== unspecified? <macro>(unspecified? OBJ) -> boolean</macro> === symbol-name-utils ==== Usage <enscript language=scheme> (require-extension symbol-name-utils) </enscript> ==== keyword->symbol <procedure>(keyword->symbol KEY) -> symbol</procedure> ==== keyword->uninterned-symbol <procedure>(keyword->uninterned-symbol KEY) -> symbol</procedure> ==== symbol->keyword <procedure>(symbol->keyword SYM) -> keyword</procedure> ==== symbol-printname-details <procedure>(symbol-printname-details SYM) -> (string string)</procedure> Returns 2 values: the {{string}}, and any qualification prefix {{string}}, for {{SYM}} ==== symbol-printname=? <procedure>(symbol-printname=? X Y) -> boolean</procedure> {{X}} & {{Y}} are {{symbol}}. ==== symbol-printname<? <procedure>(symbol-printname<? X Y) -> boolean</procedure> {{X}} & {{Y}} are {{symbol}}. ==== symbol-printname-length <procedure>(symbol-printname-length SYM) -> integer</procedure> ==== max-symbol-printname-length <procedure>(max-symbol-printname-length SYMS) -> integer</procedure> {{SYMS}} is a {{list}} of {{symbol}}. === symbol-qualified-utils ==== Usage <enscript language=scheme> (require-extension symbol-qualified-utils) </enscript> ==== make-qualified-symbol <procedure>(make-qualified-symbol PREFIX NAME) -> symbol</procedure> {{PREFIX}} & {{NAME}} are either {{symbol}} or {{string}}. ==== make-qualified-uninterned-symbol <procedure>(make-qualified-uninterned-symbol PREFIX NAME) -> symbol</procedure> ==== qualified-symbol? <procedure>(qualified-symbol? SYM) -> boolean</procedure> ==== symbol->qualified-string <procedure>(symbol->qualified-string SYM) -> string</procedure> === symbol-lolevel-utils ==== Usage <enscript language=scheme> (require-extension symbol-lolevel-utils) </enscript> ==== interned-symbol? <procedure>(interned-symbol? SYM) -> boolean</procedure> == Usage <enscript language=scheme> (require-extension symbol-utils) </enscript> == Author [[/users/kon-lovett|Kon Lovett]] == Version history ; 1.2.0 : Add {{keyword->uninterned-symbol}} & {{keyword->symbol}}. ; 1.1.0 : Add {{symbol-name-utils}}, {{symbol-value-utils}}, {{symbol-qualified-utils}}, {{symbol-lolevel-utils}} modules. ; 1.0.3 : Add types & better type checking. ; 1.0.2 : Fix for ticket #630. ; 1.0.1 : ; 1.0.0 : Hello. == License Copyright (C) 2010 Kon Lovett. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the Software), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED ASIS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Description of your changes:

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