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Top Forums Shell Programming and Scripting Shell syntax checker available, or is a new project needed? Post 302325501 by drl on Monday 15th of June 2009 10:07:37 AM
Old 06-15-2009
Hi.

I think the advice you cited is correct.
Code:
              -n      Read commands but do not execute them.  This may be used
                      to  check  a  shell  script  for syntax errors. 
-- excerpt from man bash

I may be using Wiktionary definition 3 in this response Smilie , but I think you desire a code in the vein of definition 2.

If I have some time, I'll poke around to see if I can find is anything along those lines.

It's possible that if you have such complex shell scripts that you need a semantic checker, then you may be at the point to consider writing the solution in a more appropriate language (or structure) ... cheers, drl
Quote:
semantic
...
1. Of or relating to semantics or the meanings of words.
2. (web design, of code) Reflecting intended structure and meaning.
3. (of a detail or distinction) Petty or trivial; (of a person or statement) quibbling, niggling.

-- semantic - Wiktionary

PS The code
Code:
set -o nounset

will diagnose undefined variables.
 

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Locale::Script(3pm)					 Perl Programmers Reference Guide				       Locale::Script(3pm)

NAME
Locale::Script - standard codes for script identification SYNOPSIS
use Locale::Script; $script = code2script('phnx'); # 'Phoenician' $code = script2code('Phoenician'); # 'Phnx' $code = script2code('Phoenician', LOCALE_CODE_NUMERIC); # 115 @codes = all_script_codes(); @scripts = all_script_names(); DESCRIPTION
The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924. Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924 four-letter codes will be used. SUPPORTED CODE SETS
There are several different code sets you can use for identifying scripts. A code set may be specified using either a name, or a constant that is automatically exported by this module. For example, the two are equivalent: $script = code2script('phnx','alpha'); $script = code2script('phnx',LOCALE_SCRIPT_ALPHA); The codesets currently supported are: alpha, LOCALE_SCRIPT_ALPHA This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician. It also includes additions to this set included in the IANA language registry. The Zxxx, Zyyy, and Zzzz codes are not used. This is the default code set. num, LOCALE_SCRIPT_NUMERIC This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician. ROUTINES
code2script ( CODE [,CODESET] ) script2code ( NAME [,CODESET] ) script_code2code ( CODE ,CODESET ,CODESET2 ) all_script_codes ( [CODESET] ) all_script_names ( [CODESET] ) Locale::Script::rename_script ( CODE ,NEW_NAME [,CODESET] ) Locale::Script::add_script ( CODE ,NAME [,CODESET] ) Locale::Script::delete_script ( CODE [,CODESET] ) Locale::Script::add_script_alias ( NAME ,NEW_NAME ) Locale::Script::delete_script_alias ( NAME ) Locale::Script::rename_script_code ( CODE ,NEW_CODE [,CODESET] ) Locale::Script::add_script_code_alias ( CODE ,NEW_CODE [,CODESET] ) Locale::Script::delete_script_code_alias ( CODE [,CODESET] ) These routines are all documented in the Locale::Codes::API man page. SEE ALSO
Locale::Codes The Locale-Codes distribution. Locale::Codes::API The list of functions supported by this module. http://www.unicode.org/iso15924/ Home page for ISO 15924. http://www.iana.org/assignments/language-subtag-registry The IANA language subtag registry. AUTHOR
See Locale::Codes for full author history. Currently maintained by Sullivan Beck (sbeck@cpan.org). COPYRIGHT
Copyright (c) 1997-2001 Canon Research Centre Europe (CRE). Copyright (c) 2001-2010 Neil Bowers Copyright (c) 2010-2012 Sullivan Beck This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.16.2 2012-10-11 Locale::Script(3pm)
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