diff options
Diffstat (limited to 'regex.c')
| -rw-r--r-- | regex.c | 40 |
1 files changed, 40 insertions, 0 deletions
@@ -352,6 +352,8 @@ enum regexpcode casefold_off, /* Turn off casefold flag. */ posix_on, /* Turn on POSIXified line match (match with newlines). */ posix_off, /* Turn off POSIXified line match. */ + mline_on, /* Turn on multi line match (match with newlines). */ + mline_off, /* Turn off multi line match. */ start_nowidth, /* Save string point to the stack. */ stop_nowidth, /* Restore string place at the point start_nowidth. */ pop_and_fail, /* Fail after popping nowidth entry from stack. */ @@ -772,6 +774,14 @@ print_partial_compiled_pattern(start, end) printf("/posix_off"); break; + case mline_on: + printf("/mline_on"); + break; + + case mline_off: + printf("/mline_off"); + break; + case start_nowidth: EXTRACT_NUMBER_AND_INCR (mcnt, p); printf("/start_nowidth//%d", mcnt); @@ -1027,6 +1037,8 @@ calculate_must_string(start, end) case stop_paren: case posix_on: case posix_off: + case mline_on: + case mline_off: break; case charset: @@ -1689,6 +1701,18 @@ re_compile_pattern(pattern, size, bufp) BUFPUSH(posix_on); } break; + case 'm': + if (negative) { + if (options&RE_OPTION_MULTILINE) { + options &= ~RE_OPTION_MULTILINE; + BUFPUSH(mline_off); + } + } + else if (!(options&RE_OPTION_MULTILINE)) { + options |= RE_OPTION_MULTILINE; + BUFPUSH(mline_on); + } + break; case 'i': if (negative) { if (options&RE_OPTION_IGNORECASE) { @@ -1802,6 +1826,9 @@ re_compile_pattern(pattern, size, bufp) if ((options ^ stackp[-1]) & RE_OPTION_POSIXLINE) { BUFPUSH((options&RE_OPTION_POSIXLINE)?posix_off:posix_on); } + if ((options ^ stackp[-1]) & RE_OPTION_MULTILINE) { + BUFPUSH((options&RE_OPTION_POSIXLINE)?mline_off:mline_on); + } pending_exact = 0; if (fixup_alt_jump) { /* Push a dummy failure point at the end of the @@ -2765,6 +2792,11 @@ re_compile_fastmap(bufp) options ^= RE_OPTION_POSIXLINE; continue; + case mline_on: + case mline_off: + options ^= RE_OPTION_MULTILINE; + continue; + case endline: if (TRANSLATE_P()) fastmap[translate['\n']] = 1; @@ -4105,6 +4137,14 @@ re_match(bufp, string_arg, size, pos, regs) options &= ~RE_OPTION_POSIXLINE; continue; + case mline_on: + options |= RE_OPTION_MULTILINE; + continue; + + case mline_off: + options &= ~RE_OPTION_MULTILINE; + continue; + case wordbound: if (AT_STRINGS_BEG(d)) { if (IS_A_LETTER(d)) break; |