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
37 ALNUML ALNUM, no Match any alphanumeric char in locale
38 ALNUMLUTF8 ALNUM, no Match any alphanumeric char in locale
39 NALNUM NALNUM, no Match any non-alphanumeric character
40 NALNUMUTF8 NALNUM, no Match any non-alphanumeric character
41 NALNUML NALNUM, no Match any non-alphanumeric char in locale
42 NALNUMLUTF8 NALNUM, no Match any non-alphanumeric char in locale
43 SPACE SPACE, no Match any whitespace character
44 SPACEUTF8 SPACE, no Match any whitespace character
45 SPACEL SPACE, no Match any whitespace char in locale
46 SPACELUTF8 SPACE, no Match any whitespace char in locale
47 NSPACE NSPACE, no Match any non-whitespace character
48 NSPACEUTF8 NSPACE, no Match any non-whitespace character
49 NSPACEL NSPACE, no Match any non-whitespace char in locale
50 NSPACELUTF8 NSPACE, no Match any non-whitespace char in locale
51 DIGIT DIGIT, no Match any numeric character
52 DIGITUTF8 DIGIT, no Match any numeric character
53 NDIGIT NDIGIT, no Match any non-numeric character
54 NDIGITUTF8 NDIGIT, no Match any non-numeric character
55 CLUMP CLUMP, no Match any combining character sequence
57 # BRANCH The set of branches constituting a single choice are hooked
58 # together with their "next" pointers, since precedence prevents
59 # anything being concatenated to any individual branch. The
60 # "next" pointer of the last BRANCH in a choice points to the
61 # thing following the whole choice. This is also where the
62 # final "next" pointer of each individual branch points; each
63 # branch starts with the operand node of a BRANCH node.
65 BRANCH BRANCH, node Match this alternative, or the next...
67 # BACK Normal "next" pointers all implicitly point forward; BACK
68 # exists to make loop structures possible.
70 BACK BACK, no Match "", "next" ptr points backward.
73 EXACT EXACT, sv Match this string (preceded by length).
74 EXACTF EXACT, sv Match this string, folded (prec. by length).
75 EXACTFL EXACT, sv Match this string, folded in locale (w/len).
78 NOTHING NOTHING,no Match empty string.
79 # A variant of above which delimits a group, thus stops optimizations
80 TAIL NOTHING,no Match empty string. Can jump here from outside.
82 # STAR,PLUS '?', and complex '*' and '+', are implemented as circular
83 # BRANCH structures using BACK. Simple cases (one character
84 # per match) are implemented with STAR and PLUS for speed
85 # and to minimize recursive plunges.
87 STAR STAR, node Match this (simple) thing 0 or more times.
88 PLUS PLUS, node Match this (simple) thing 1 or more times.
90 CURLY CURLY, sv 2 Match this simple thing {n,m} times.
91 CURLYN CURLY, no 2 Match next-after-this simple thing
92 # {n,m} times, set parenths.
93 CURLYM CURLY, no 2 Match this medium-complex thing {n,m} times.
94 CURLYX CURLY, sv 2 Match this complex thing {n,m} times.
96 # This terminator creates a loop structure for CURLYX
97 WHILEM WHILEM, no Do curly processing and see if rest matches.
99 # OPEN,CLOSE,GROUPP ...are numbered at compile time.
100 OPEN OPEN, num 1 Mark this point in input as start of #n.
101 CLOSE CLOSE, num 1 Analogous to OPEN.
103 REF REF, num 1 Match some already matched string
104 REFF REF, num 1 Match already matched string, folded
105 REFFL REF, num 1 Match already matched string, folded in loc.
107 # grouping assertions
108 IFMATCH BRANCHJ,off 1 2 Succeeds if the following matches.
109 UNLESSM BRANCHJ,off 1 2 Fails if the following matches.
110 SUSPEND BRANCHJ,off 1 1 "Independent" sub-RE.
111 IFTHEN BRANCHJ,off 1 1 Switch, should be preceeded by switcher .
112 GROUPP GROUPP, num 1 Whether the group matched.
114 # Support for long RE
115 LONGJMP LONGJMP,off 1 1 Jump far away.
116 BRANCHJ BRANCHJ,off 1 1 BRANCH with long offset.
119 EVAL EVAL, evl 1 Execute some Perl code.
122 MINMOD MINMOD, no Next operator is not greedy.
123 LOGICAL LOGICAL,no Next opcode should set the flag only.
125 # This is not used yet
126 RENUM BRANCHJ,off 1 1 Group with independently numbered parens.
128 # This is not really a node, but an optimized away piece of a "long" node.
129 # To simplify debugging output, we mark it as if it were a node
130 OPTIMIZED NOTHING,off Placeholder for dump.