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Overview
Comment:pt::pgen test cases for error handling updated and tweaked. Pass for all Tcl backends. Fail for the generated C backend. To be fixed.
Timelines: family | ancestors | descendants | both | pt-work
Files: files | file ages | folders
SHA1: cbd7732a087b324db6d1008c8be3a13481e2a499
User & Date: aku 2014-06-27 06:04:38
Context
2014-06-28
05:04
char - Modified internals to accept strings and varargs strings as arguments, not just single char. Drops the need for externa split/join combos to handle strings. Extended the testsuite to match. Further refactored the argument handling into a single helper command. check-in: 570945bf84 user: aku tags: pt-work
2014-06-27
06:04
pt::pgen test cases for error handling updated and tweaked. Pass for all Tcl backends. Fail for the generated C backend. To be fixed. check-in: cbd7732a08 user: aku tags: pt-work
06:03
pt::util - Expansion of error details for readability added, plus fusion of terminals and char-sets into single char-set. check-in: 88105b2ae2 user: aku tags: pt-work
Changes
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Changes to modules/pt/tests/pt_pgen.tests.

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    # characters, for characters special to Tcl, C, and
    # PEGs. I.e. ensure that the various forms of quoting are done
    # correctly.

    # Grammar for all test cases below, with the actual character
    # mapped in (replacing @).
    set gtemplate "PEG a_pe_grammar ('@') END;"


    # Table of test cases ...
    #             Id PEG     InText Error detail
    lappend chars  0 \{      \{     [list t \{]
    lappend chars  1 \[      \[     [list t \[]
    lappend chars  2 \"      \"     [list t \"]
    lappend chars  3 \\033   \033   [list t ESC]  ;# See below, WIBNI \e escape
    lappend chars  4 \\n     \n     [list t LF]
    lappend chars  5 \\r     \r     [list t CR]
    lappend chars  6 \\t     \t     [list t TAB]

    lappend chars  7 \\010   \b     [list t BS]   ;# TODO extend PEG grammar to recognize these.
    lappend chars  8 \\014   \f     [list t FF]   ;#
    lappend chars  9 \\013   \v     [list t VTAB] ;#
    lappend chars 10 \\007   \a     [list t BEL]
    lappend chars 11 { }     { }    [list t SPACE]
    lappend chars 12 \\\\    \\     [list t \\]

    lappend chars 13 \\u229b \u229b [list t \u229b] ;# math symbol, circled asterix
    # test all control characters ... (and DEL)
    # more characters: above ascii = unicode BMP.

    foreach {n peg input message} $chars {
	set glabel "x:$message"
	set grdata [string map [list @ $peg] $gtemplate]


	# Make parser instance. Shared across tests.
	# Amortize the time spent on dynamically making it.
	set p [make-parser $format $glabel $grdata]

	test pt-pgen-parse:${parseimpl}-rde:${rdeimpl}-stack:${stackimpl}-f:${format}-g:${glabel}-3.$n \
	    "$format parser $glabel, good input" -setup {
	    } -body {
		$p parset $input
	    } -result {}


	test pt-pgen-parse:${parseimpl}-rde:${rdeimpl}-stack:${stackimpl}-f:${format}-g:${glabel}-4.$n \
	    "$format parser $glabel, bad input - \\000" -setup {
	    } -body {
		set code [catch {
		    $p parset \000
		} msg]
		lassign $msg tag loc mlist
		list $tag $loc [lsort -dict $mlist]
	    } -result [list pt::rde 0 [list $message]]











	# Kill shared parser instance.
	$p destroy
    }

}









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    # characters, for characters special to Tcl, C, and
    # PEGs. I.e. ensure that the various forms of quoting are done
    # correctly.

    # Grammar for all test cases below, with the actual character
    # mapped in (replacing @).
    set gtemplate "PEG a_pe_grammar ('@') END;"
    set etemplate "Parse error at position 0 (Line 0, column 0).\n... X ...\n    ^\nExpected one of\n* The character '@'\n"

    # Table of test cases ...
    #             Id PEG     InText Error detail
    lappend chars  0 \{      \{     [list t \{]     \{
    lappend chars  1 \[      \[     [list t \[]     \[
    lappend chars  2 \"      \"     [list t \"]     \"
    lappend chars  3 \\033   \033   [list t \33]    <ESC>
    lappend chars  4 \\n     \n     [list t \n]     <LF>
    lappend chars  5 \\r     \r     [list t \r]     <CR>
    lappend chars  6 \\t     \t     [list t \t]     <TAB>
    # \b, \f, \v - Extend PEG grammar to recognize. Also \e = \33
    lappend chars  7 \\010   \b     [list t \b]     <BS>
    lappend chars  8 \\014   \f     [list t \f]     <FF>
    lappend chars  9 \\013   \v     [list t \v]     <VTAB>
    lappend chars 10 \\007   \a     [list t \a]     <BEL>
    lappend chars 11 { }     { }    [list t { }]    <SPACE>
    lappend chars 12 \\\\    \\     [list t \\]     \\
    # math symbol, circled asterix
    lappend chars 13 \\u229b \u229b [list t \u229b] \u229b
    # test all control characters ... (and DEL)
    # more characters: above ascii = unicode BMP.

    foreach {n peg input message hmsg} $chars {
	set glabel "T_$hmsg"
	set grdata [string map [list @ $peg]  $gtemplate]
	set edata  [string map [list @ $hmsg] $etemplate]

	# Make parser instance. Shared across tests.
	# Amortize the time spent on dynamically making it.
	set p [make-parser $format $glabel $grdata]

	test pt-pgen-parse:${parseimpl}-rde:${rdeimpl}-stack:${stackimpl}-f:${format}-g:${glabel}-3.$n \
	    "$format parser $glabel, good input" -setup {
	    } -body {
		$p parset $input
	    } -result {}


	test pt-pgen-parse:${parseimpl}-rde:${rdeimpl}-stack:${stackimpl}-f:${format}-g:${glabel}-4.$n \
	    "$format parser $glabel, bad input, tcl error" -setup {
	    } -body {
		set code [catch {
		    $p parset X
		} msg]
		lassign $msg tag loc mlist
		list $tag $loc [lsort -dict $mlist]
	    } -result [list pt::rde 0 [list $message]]

	test pt-pgen-parse:${parseimpl}-rde:${rdeimpl}-stack:${stackimpl}-f:${format}-g:${glabel}-5.$n \
	    "$format parser $glabel, bad input, readable error" -setup {
	    } -body {
		set code [catch {
		    $p parset X
		} msg]
		lassign $msg tag loc mlist
		pt::util::error2readable [list $tag $loc [lsort -dict $mlist]] X
	    } -result $edata

	# Kill shared parser instance.
	$p destroy
    }

}
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