2 # NAME \t TYPE, arg-description [num-args] [longjump-len] \t DESCRIPTION
4 # Empty rows and #-comment rows are ignored.
7 END END, no End of program.
8 SUCCEED END, no Return from a subroutine, basically.
11 BOL BOL, no Match "" at beginning of line.
12 MBOL BOL, no Same, assuming multiline.
13 SBOL BOL, no Same, assuming singleline.
14 EOS EOL, no Match "" at end of string.
15 EOL EOL, no Match "" at end of line.
16 MEOL EOL, no Same, assuming multiline.
17 SEOL EOL, no Same, assuming singleline.
18 BOUND BOUND, no Match "" at any word boundary
19 BOUNDUTF8 BOUND, no Match "" at any word boundary
20 BOUNDL BOUND, no Match "" at any word boundary
21 BOUNDLUTF8 BOUND, no Match "" at any word boundary
22 NBOUND NBOUND, no Match "" at any word non-boundary
23 NBOUNDUTF8 NBOUND, no Match "" at any word non-boundary
24 NBOUNDL NBOUND, no Match "" at any word non-boundary
25 NBOUNDLUTF8 NBOUND, no Match "" at any word non-boundary
26 GPOS GPOS, no Matches where last m//g left off.
28 # [Special] alternatives
29 REG_ANY REG_ANY, no Match any one character (except newline).
30 ANYUTF8 REG_ANY, no Match any one Unicode character (except newline).
31 SANY REG_ANY, no Match any one character.
32 SANYUTF8 REG_ANY, no Match any one Unicode character.
33 ANYOF ANYOF, sv Match character in (or not in) this class.
34 ANYOFUTF8 ANYOF, sv 1 Match character in (or not in) this class.
35 ALNUM ALNUM, no Match any alphanumeric character
36 ALNUMUTF8 ALNUM, no Match any alphanumeric character in utf8
37 ALNUML ALNUM, no Match any alphanumeric char in locale
38 ALNUMLUTF8 ALNUM, no Match any alphanumeric char in locale+utf8
39 NALNUM NALNUM, no Match any non-alphanumeric character
40 NALNUMUTF8 NALNUM, no Match any non-alphanumeric character in utf8
41 NALNUML NALNUM, no Match any non-alphanumeric char in locale
42 NALNUMLUTF8 NALNUM, no Match any non-alphanumeric char in locale+utf8
43 SPACE SPACE, no Match any whitespace character
44 SPACEUTF8 SPACE, no Match any whitespace character in utf8
45 SPACEL SPACE, no Match any whitespace char in locale
46 SPACELUTF8 SPACE, no Match any whitespace char in locale+utf8
47 NSPACE NSPACE, no Match any non-whitespace character
48 NSPACEUTF8 NSPACE, no Match any non-whitespace character in utf8
49 NSPACEL NSPACE, no Match any non-whitespace char in locale
50 NSPACELUTF8 NSPACE, no Match any non-whitespace char in locale+utf8
51 DIGIT DIGIT, no Match any numeric character
52 DIGITUTF8 DIGIT, no Match any numeric character in utf8
53 DIGITL DIGIT, no Match any numeric character in locale
54 DIGITLUTF8 DIGIT, no Match any numeric character in locale+utf8
55 NDIGIT NDIGIT, no Match any non-numeric character
56 NDIGITUTF8 NDIGIT, no Match any non-numeric character in utf8
57 NDIGITL NDIGIT, no Match any non-numeric character in locale
58 NDIGITLUTF8 NDIGIT, no Match any non-numeric character in locale+utf8
59 CLUMP CLUMP, no Match any combining character sequence
61 # BRANCH The set of branches constituting a single choice are hooked
62 # together with their "next" pointers, since precedence prevents
63 # anything being concatenated to any individual branch. The
64 # "next" pointer of the last BRANCH in a choice points to the
65 # thing following the whole choice. This is also where the
66 # final "next" pointer of each individual branch points; each
67 # branch starts with the operand node of a BRANCH node.
69 BRANCH BRANCH, node Match this alternative, or the next...
71 # BACK Normal "next" pointers all implicitly point forward; BACK
72 # exists to make loop structures possible.
74 BACK BACK, no Match "", "next" ptr points backward.
77 EXACT EXACT, sv Match this string (preceded by length).
78 EXACTF EXACT, sv Match this string, folded (prec. by length).
79 EXACTFL EXACT, sv Match this string, folded in locale (w/len).
82 NOTHING NOTHING,no Match empty string.
83 # A variant of above which delimits a group, thus stops optimizations
84 TAIL NOTHING,no Match empty string. Can jump here from outside.
86 # STAR,PLUS '?', and complex '*' and '+', are implemented as circular
87 # BRANCH structures using BACK. Simple cases (one character
88 # per match) are implemented with STAR and PLUS for speed
89 # and to minimize recursive plunges.
91 STAR STAR, node Match this (simple) thing 0 or more times.
92 PLUS PLUS, node Match this (simple) thing 1 or more times.
94 CURLY CURLY, sv 2 Match this simple thing {n,m} times.
95 CURLYN CURLY, no 2 Match next-after-this simple thing
96 # {n,m} times, set parenths.
97 CURLYM CURLY, no 2 Match this medium-complex thing {n,m} times.
98 CURLYX CURLY, sv 2 Match this complex thing {n,m} times.
100 # This terminator creates a loop structure for CURLYX
101 WHILEM WHILEM, no Do curly processing and see if rest matches.
103 # OPEN,CLOSE,GROUPP ...are numbered at compile time.
104 OPEN OPEN, num 1 Mark this point in input as start of #n.
105 CLOSE CLOSE, num 1 Analogous to OPEN.
107 REF REF, num 1 Match some already matched string
108 REFF REF, num 1 Match already matched string, folded
109 REFFL REF, num 1 Match already matched string, folded in loc.
111 # grouping assertions
112 IFMATCH BRANCHJ,off 1 2 Succeeds if the following matches.
113 UNLESSM BRANCHJ,off 1 2 Fails if the following matches.
114 SUSPEND BRANCHJ,off 1 1 "Independent" sub-RE.
115 IFTHEN BRANCHJ,off 1 1 Switch, should be preceeded by switcher .
116 GROUPP GROUPP, num 1 Whether the group matched.
118 # Support for long RE
119 LONGJMP LONGJMP,off 1 1 Jump far away.
120 BRANCHJ BRANCHJ,off 1 1 BRANCH with long offset.
123 EVAL EVAL, evl 1 Execute some Perl code.
126 MINMOD MINMOD, no Next operator is not greedy.
127 LOGICAL LOGICAL,no Next opcode should set the flag only.
129 # This is not used yet
130 RENUM BRANCHJ,off 1 1 Group with independently numbered parens.
132 # This is not really a node, but an optimized away piece of a "long" node.
133 # To simplify debugging output, we mark it as if it were a node
134 OPTIMIZED NOTHING,off Placeholder for dump.