globbing supports character classes now and ^EN string building construct to escape glob patterns

 * globbing is fnmatch(3) compatible, now on every supported platform.
 * which means that escaping of glob patterns is possible now.
   ^ENq has been introduced to ease this task.
 * This finally allows you to pass unmodified filenames to EB.
   Previously it was impossible to open file names containing glob wildcards.
 * this was achieved by moving from GPattern to GRegex as the underlying
   implementation.
 * The glob pattern is converted to a regular expression before being
   compiled to a GRegex.
   This turned out to be trickier than anticipated (~140 lines of code)
   and has a runtime penalty of course (complexity is O(2*n) over the
   pattern length).
   It is IMHO still better than the alternatives, like importing
   external code from libiberty, which is potentially non-cross-platform.
 * Using GRegex also opens the potential of supporting brace "expansions"
   later in the form of glob pattern constructs
   (they won't actually expand but match alternatives).
 * is_glob_pattern() has been simplified and moved to Globber::is_pattern().
   It makes sense to reuse the Globber class namespace instead of using
   plain functions for functions working on glob patterns.
 * The documentation has a new subsection on glob patterns now.
 * Testsuite extended with glob pattern test cases

1 files changed, 19 insertions, 1 deletions

diff --git a/tests/testsuite.at b/tests/testsuite.at
index 81a770c..2e613ee 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -1,12 +1,30 @@
 AT_INIT
 AT_COLOR_TESTS
 
+# NOTE: There is currently no way to influence the return
+# code of SciTECO, except to provoke an error.
+# Since errors cannot be yielded explicitly, we use the
+# idiom "(0/0)" to enforce a "Division by zero" error
+# whenever we want to fail.
+
 AT_SETUP([Closing loops at the correct macro level])
 AT_CHECK([$SCITECO -e '@^Ua{>} <Ma'], 1, ignore, ignore)
 AT_CLEANUP
 
 AT_SETUP([Automatic EOL normalization])
-AT_CHECK([$SCITECO -e "@EB'${srcdir}/autoeol-input.txt' EL-2\"N/0' 2LR 13@I'' 0EL @EW'autoeol-sciteco.txt'"],
+AT_CHECK([$SCITECO -e "@EB'${srcdir}/autoeol-input.txt' EL-2\"N(0/0)' 2LR 13@I'' 0EL @EW'autoeol-sciteco.txt'"],
          0, ignore, ignore)
 AT_CHECK([cmp -b autoeol-sciteco.txt ${srcdir}/autoeol-output.txt], 0, ignore, ignore)
 AT_CLEANUP
+
+AT_SETUP([Glob patterns with character classes])
+# Also checks closing brackets as part of the character set.
+# NOTE: The worse-than-average escaping of the square brackets with
+# ^EU< and ^EU> is necessary here since it is the current M4
+# quotation character and must be balanced:
+AT_CHECK([$SCITECO -e "91U< 93U> :@EN/*.^EU<^EU>ch^EU>/foo.h/\"F(0/0)'"], 0, ignore, ignore)
+AT_CLEANUP
+
+AT_SETUP([Glob patterns with unclosed trailing brackets])
+AT_CHECK([$SCITECO -e "91U< :@EN/*.^EU<h/foo.^EU<h/\"F(0/0)'"], 0, ignore, ignore)
+AT_CLEANUP