264 lines
7.4 KiB
Tcl
264 lines
7.4 KiB
Tcl
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# regexpTestLib.tcl --
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#
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# This file contains tcl procedures used by spencer2testregexp.tcl and
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# spencer2regexp.tcl, which are programs written to convert Henry
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# Spencer's test suite to tcl test files.
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#
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# Copyright (c) 1996 Sun Microsystems, Inc.
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proc readInputFile {} {
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global inFileName
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global lineArray
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set fileId [open $inFileName r]
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set i 0
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while {[gets $fileId line] >= 0} {
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set len [string length $line]
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if {($len > 0) && ([string index $line [expr {$len - 1}]] == "\\")} {
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if {[info exists lineArray(c$i)] == 0} {
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set lineArray(c$i) 1
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} else {
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incr lineArray(c$i)
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}
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set line [string range $line 0 [expr {$len - 2}]]
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append lineArray($i) $line
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continue
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}
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if {[info exists lineArray(c$i)] == 0} {
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set lineArray(c$i) 1
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} else {
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incr lineArray(c$i)
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}
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append lineArray($i) $line
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incr i
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}
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close $fileId
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return $i
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}
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#
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# strings with embedded @'s are truncated
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# unpreceeded @'s are replaced by {}
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#
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proc removeAts {ls} {
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set len [llength $ls]
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set newLs {}
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foreach item $ls {
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regsub @.* $item "" newItem
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lappend newLs $newItem
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}
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return $newLs
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}
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proc convertErrCode {code} {
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set errMsg "couldn't compile regular expression pattern:"
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if {[string compare $code "INVARG"] == 0} {
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return "$errMsg invalid argument to regex routine"
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} elseif {[string compare $code "BADRPT"] == 0} {
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return "$errMsg ?+* follows nothing"
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} elseif {[string compare $code "BADBR"] == 0} {
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return "$errMsg invalid repetition count(s)"
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} elseif {[string compare $code "BADOPT"] == 0} {
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return "$errMsg invalid embedded option"
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} elseif {[string compare $code "EPAREN"] == 0} {
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return "$errMsg unmatched ()"
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} elseif {[string compare $code "EBRACE"] == 0} {
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return "$errMsg unmatched {}"
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} elseif {[string compare $code "EBRACK"] == 0} {
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return "$errMsg unmatched \[\]"
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} elseif {[string compare $code "ERANGE"] == 0} {
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return "$errMsg invalid character range"
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} elseif {[string compare $code "ECTYPE"] == 0} {
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return "$errMsg invalid character class"
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} elseif {[string compare $code "ECOLLATE"] == 0} {
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return "$errMsg invalid collating element"
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} elseif {[string compare $code "EESCAPE"] == 0} {
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return "$errMsg invalid escape sequence"
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} elseif {[string compare $code "BADPAT"] == 0} {
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return "$errMsg invalid regular expression"
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} elseif {[string compare $code "ESUBREG"] == 0} {
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return "$errMsg invalid backreference number"
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} elseif {[string compare $code "IMPOSS"] == 0} {
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return "$errMsg can never match"
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}
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return "$errMsg $code"
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}
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proc writeOutputFile {numLines fcn} {
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global outFileName
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global lineArray
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# open output file and write file header info to it.
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set fileId [open $outFileName w]
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puts $fileId "# Commands covered: $fcn"
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puts $fileId "#"
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puts $fileId "# This Tcl-generated file contains tests for the $fcn tcl command."
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puts $fileId "# Sourcing this file into Tcl runs the tests and generates output for"
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puts $fileId "# errors. No output means no errors were found. Setting VERBOSE to"
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puts $fileId "# -1 will run tests that are known to fail."
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puts $fileId "#"
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puts $fileId "# Copyright (c) 1998 Sun Microsystems, Inc."
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puts $fileId "#"
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puts $fileId "# See the file \"license.terms\" for information on usage and redistribution"
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puts $fileId "# of this file, and for a DISCLAIMER OF ALL WARRANTIES."
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puts $fileId "#"
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puts $fileId "\# SCCS: \%Z\% \%M\% \%I\% \%E\% \%U\%"
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puts $fileId "\nproc print \{arg\} \{puts \$arg\}\n"
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puts $fileId "if \{\[string compare test \[info procs test\]\] == 1\} \{"
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puts $fileId " source defs ; set VERBOSE -1\n\}\n"
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puts $fileId "if \{\$VERBOSE != -1\} \{"
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puts $fileId " proc print \{arg\} \{\}\n\}\n"
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puts $fileId "#"
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puts $fileId "# The remainder of this file is Tcl tests that have been"
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puts $fileId "# converted from Henry Spencer's regexp test suite."
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puts $fileId "#\n"
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set lineNum 0
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set srcLineNum 1
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while {$lineNum < $numLines} {
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set currentLine $lineArray($lineNum)
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# copy comment string to output file and continue
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if {[string index $currentLine 0] == "#"} {
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puts $fileId $currentLine
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incr srcLineNum $lineArray(c$lineNum)
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incr lineNum
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continue
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}
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set len [llength $currentLine]
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# copy empty string to output file and continue
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if {$len == 0} {
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puts $fileId "\n"
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incr srcLineNum $lineArray(c$lineNum)
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incr lineNum
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continue
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}
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if {($len < 3)} {
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puts "warning: test is too short --\n\t$currentLine"
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incr srcLineNum $lineArray(c$lineNum)
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incr lineNum
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continue
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}
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puts $fileId [convertTestLine $currentLine $len $lineNum $srcLineNum]
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incr srcLineNum $lineArray(c$lineNum)
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incr lineNum
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}
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close $fileId
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}
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proc convertTestLine {currentLine len lineNum srcLineNum} {
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regsub -all {(?b)\\} $currentLine {\\\\} currentLine
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set re [lindex $currentLine 0]
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set flags [lindex $currentLine 1]
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set str [lindex $currentLine 2]
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# based on flags, decide whether to skip the test
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if {[findSkipFlag $flags]} {
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regsub -all {\[|\]|\(|\)|\{|\}|\#} $currentLine {\&} line
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set msg "\# skipping char mapping test from line $srcLineNum\n"
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append msg "print \{... skip test from line $srcLineNum: $line\}"
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return $msg
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}
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# perform mapping if '=' flag exists
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set noBraces 0
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if {[regexp {=|>} $flags] == 1} {
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regsub -all {_} $currentLine {\\ } currentLine
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regsub -all {A} $currentLine {\\007} currentLine
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regsub -all {B} $currentLine {\\b} currentLine
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regsub -all {E} $currentLine {\\033} currentLine
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regsub -all {F} $currentLine {\\f} currentLine
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regsub -all {N} $currentLine {\\n} currentLine
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# if and \r substitutions are made, do not wrap re, flags,
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# str, and result in braces
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set noBraces [regsub -all {R} $currentLine {\\\u000D} currentLine]
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regsub -all {T} $currentLine {\\t} currentLine
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regsub -all {V} $currentLine {\\v} currentLine
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if {[regexp {=} $flags] == 1} {
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set re [lindex $currentLine 0]
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}
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set str [lindex $currentLine 2]
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}
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set flags [removeFlags $flags]
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# find the test result
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set numVars [expr {$len - 3}]
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set vars {}
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set vals {}
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set result 0
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set v 0
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if {[regsub {\*} "$flags" "" newFlags] == 1} {
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# an error is expected
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if {[string compare $str "EMPTY"] == 0} {
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# empty regexp is not an error
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# skip this test
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return "\# skipping the empty-re test from line $srcLineNum\n"
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}
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set flags $newFlags
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set result "\{1 \{[convertErrCode $str]\}\}"
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} elseif {$numVars > 0} {
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# at least 1 match is made
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if {[regexp {s} $flags] == 1} {
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set result "\{0 1\}"
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} else {
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while {$v < $numVars} {
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append vars " var($v)"
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append vals " \$var($v)"
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incr v
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}
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set tmp [removeAts [lrange $currentLine 3 $len]]
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set result "\{0 \{1 $tmp\}\}"
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if {$noBraces} {
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set result "\[subst $result\]"
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}
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}
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} else {
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# no match is made
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set result "\{0 0\}"
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}
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# set up the test and write it to the output file
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set cmd [prepareCmd $flags $re $str $vars $noBraces]
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if {$cmd == -1} {
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return "\# skipping test with metasyntax from line $srcLineNum\n"
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}
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set test "test regexp-1.$srcLineNum \{converted from line $srcLineNum\} \{\n"
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append test "\tcatch {unset var}\n"
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append test "\tlist \[catch \{\n"
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append test "\t\tset match \[$cmd\]\n"
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append test "\t\tlist \$match $vals\n"
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append test "\t\} msg\] \$msg\n"
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append test "\} $result\n"
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return $test
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}
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