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-
`-'
?
`?'
.
`.'
^
^
`^'
(
(
)
)
[
`[^'
`['
]
`]'
{
`{'
}
`}'
$
$
*
`*'
\
`\`'
`\''
\(
\)
`\{'
`\}'
`\<'
`\>'
\|
\
`\'
+
`+'
|
|
a
allocated initialization
alternation operator
alternation operator and `^'
anchoring
anchors, anchors
Awk
\
`\B'
`\b'
b
back references
backtracking, backtracking
beginning-of-line operator
bracket expression
buffer field, set by re_compile_pattern
buffer initialization
c
character classes
e
Egrep
Emacs
end in struct re_registers
end-of-line operator
f
fastmap_accurate field, set by re_compile_pattern
fastmap initialization
fastmaps
g
Grep
grouping
i
ignoring case
:
`:]' in regex
[
`[:' in regex
i
interval expression
m
matching list
matching newline
matching with GNU functions
n
newline_anchor field in pattern buffer
nonmatching list
not_bol field in pattern buffer
num_regs in struct re_registers
o
open-group operator and `^'
or operator
p
parenthesizing
pattern buffer, definition of
pattern buffer initialization
POSIX Awk
r
range argument to re_search
regex.c
regex.h
regexp anchoring
REG_EXTENDED
REG_ICASE
regmatch_t
REG_NEWLINE
REG_NOSUB
regs_allocated
REGS_FIXED
REGS_REALLOCATE
REGS_UNALLOCATED
regular expressions, syntax of
re_nsub field, set by re_compile_pattern
re_pattern_buffer definition
re_registers
re_syntax_options initialization
\
`\S'
`\s'
s
searching with GNU functions
start argument to re_search
start in struct re_registers
struct re_pattern_buffer definition
subexpressions
syntax bits
syntax field, set by re_compile_pattern
syntax initialization
syntax of regular expressions
t
translate initialization
u
used field, set by re_compile_pattern
\
`\W'
`\w'
w
word boundaries, matching
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