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Remove always-0 struct re_pattern_buffer members

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* src/regex-emacs.h (struct re_pattern_buffer):
Remove no_sub, not_bol, not_eol.  They are always zero.
All uses removed, and code simplified.
This commit is contained in:
Paul Eggert 2018-08-05 18:41:21 -07:00
parent 03dfb6061b
commit e097826f89
2 changed files with 13 additions and 44 deletions
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15
src/regex-emacs.h
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@ -59,7 +59,7 @@ extern ptrdiff_t emacs_re_safe_alloca;
/* This data structure represents a compiled pattern. Before calling
the pattern compiler, the fields `buffer', `allocated', `fastmap',
`translate', and `no_sub' can be set. After the pattern has been
and `translate' can be set. After the pattern has been
compiled, the `re_nsub' field is available. All other fields are
private to the regex routines. */
@ -109,17 +109,6 @@ struct re_pattern_buffer
by `re_compile_fastmap' if it updates the fastmap. */
unsigned fastmap_accurate : 1;
/* If set, `re_match_2' does not return information about
subexpressions. */
unsigned no_sub : 1;
/* If set, a beginning-of-line anchor doesn't match at the
beginning of the string. */
unsigned not_bol : 1;
/* Similarly for an end-of-line anchor. */
unsigned not_eol : 1;
/* If true, the compilation of the pattern had to look up the syntax table,
so the compiled pattern is only valid for the current syntax table. */
unsigned used_syntax : 1;
@ -148,7 +137,7 @@ extern const char *re_compile_pattern (const char *pattern, size_t length,
compiled into BUFFER. Start searching at position START, for RANGE
characters. Return the starting position of the match, -1 for no
match, or -2 for an internal error. Also return register
information in REGS (if REGS and BUFFER->no_sub are nonzero). */
information in REGS (if REGS is nonzero). */
extern ptrdiff_t re_search (struct re_pattern_buffer *buffer,
const char *string, size_t length,
ptrdiff_t start, ptrdiff_t range,