Commit | Line | Data |
---|---|---|
d09b2d29 IZ |
1 | # Format: |
2 | # NAME \t TYPE, arg-description [num-args] [longjump-len] \t DESCRIPTION | |
3 | ||
4 | # Empty rows and #-comment rows are ignored. | |
5 | ||
6 | # Exit points | |
7 | END END, no End of program. | |
8 | SUCCEED END, no Return from a subroutine, basically. | |
9 | ||
10 | # Anchors: | |
11 | BOL BOL, no Match "" at beginning of line. | |
12 | MBOL BOL, no Same, assuming multiline. | |
13 | SBOL BOL, no Same, assuming singleline. | |
b85d18e9 | 14 | EOS EOL, no Match "" at end of string. |
d09b2d29 IZ |
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 | |
a0ed51b3 | 19 | BOUNDUTF8 BOUND, no Match "" at any word boundary |
d09b2d29 | 20 | BOUNDL BOUND, no Match "" at any word boundary |
a0ed51b3 | 21 | BOUNDLUTF8 BOUND, no Match "" at any word boundary |
d09b2d29 | 22 | NBOUND NBOUND, no Match "" at any word non-boundary |
a0ed51b3 | 23 | NBOUNDUTF8 NBOUND, no Match "" at any word non-boundary |
d09b2d29 | 24 | NBOUNDL NBOUND, no Match "" at any word non-boundary |
a0ed51b3 | 25 | NBOUNDLUTF8 NBOUND, no Match "" at any word non-boundary |
d09b2d29 IZ |
26 | GPOS GPOS, no Matches where last m//g left off. |
27 | ||
28 | # [Special] alternatives | |
22c35a8c GS |
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. | |
d09b2d29 | 33 | ANYOF ANYOF, sv Match character in (or not in) this class. |
a0ed51b3 | 34 | ANYOFUTF8 ANYOF, sv 1 Match character in (or not in) this class. |
d09b2d29 | 35 | ALNUM ALNUM, no Match any alphanumeric character |
a0ed51b3 | 36 | ALNUMUTF8 ALNUM, no Match any alphanumeric character |
d09b2d29 | 37 | ALNUML ALNUM, no Match any alphanumeric char in locale |
a0ed51b3 | 38 | ALNUMLUTF8 ALNUM, no Match any alphanumeric char in locale |
d09b2d29 | 39 | NALNUM NALNUM, no Match any non-alphanumeric character |
a0ed51b3 | 40 | NALNUMUTF8 NALNUM, no Match any non-alphanumeric character |
d09b2d29 | 41 | NALNUML NALNUM, no Match any non-alphanumeric char in locale |
a0ed51b3 | 42 | NALNUMLUTF8 NALNUM, no Match any non-alphanumeric char in locale |
d09b2d29 | 43 | SPACE SPACE, no Match any whitespace character |
a0ed51b3 | 44 | SPACEUTF8 SPACE, no Match any whitespace character |
d09b2d29 | 45 | SPACEL SPACE, no Match any whitespace char in locale |
a0ed51b3 | 46 | SPACELUTF8 SPACE, no Match any whitespace char in locale |
d09b2d29 | 47 | NSPACE NSPACE, no Match any non-whitespace character |
a0ed51b3 | 48 | NSPACEUTF8 NSPACE, no Match any non-whitespace character |
d09b2d29 | 49 | NSPACEL NSPACE, no Match any non-whitespace char in locale |
a0ed51b3 | 50 | NSPACELUTF8 NSPACE, no Match any non-whitespace char in locale |
d09b2d29 | 51 | DIGIT DIGIT, no Match any numeric character |
a0ed51b3 | 52 | DIGITUTF8 DIGIT, no Match any numeric character |
d09b2d29 | 53 | NDIGIT NDIGIT, no Match any non-numeric character |
a0ed51b3 LW |
54 | NDIGITUTF8 NDIGIT, no Match any non-numeric character |
55 | CLUMP CLUMP, no Match any combining character sequence | |
d09b2d29 IZ |
56 | |
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. | |
64 | # | |
65 | BRANCH BRANCH, node Match this alternative, or the next... | |
66 | ||
67 | # BACK Normal "next" pointers all implicitly point forward; BACK | |
68 | # exists to make loop structures possible. | |
69 | # not used | |
70 | BACK BACK, no Match "", "next" ptr points backward. | |
71 | ||
72 | # Literals | |
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). | |
76 | ||
77 | # Do nothing | |
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. | |
81 | ||
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. | |
86 | # | |
87 | STAR STAR, node Match this (simple) thing 0 or more times. | |
88 | PLUS PLUS, node Match this (simple) thing 1 or more times. | |
89 | ||
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. | |
95 | ||
96 | # This terminator creates a loop structure for CURLYX | |
97 | WHILEM WHILEM, no Do curly processing and see if rest matches. | |
98 | ||
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. | |
102 | ||
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. | |
106 | ||
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. | |
113 | ||
114 | # Support for long RE | |
115 | LONGJMP LONGJMP,off 1 1 Jump far away. | |
116 | BRANCHJ BRANCHJ,off 1 1 BRANCH with long offset. | |
117 | ||
118 | # The heavy worker | |
119 | EVAL EVAL, evl 1 Execute some Perl code. | |
120 | ||
121 | # Modifiers | |
122 | MINMOD MINMOD, no Next operator is not greedy. | |
123 | LOGICAL LOGICAL,no Next opcode should set the flag only. | |
124 | ||
125 | # This is not used yet | |
126 | RENUM BRANCHJ,off 1 1 Group with independently numbered parens. | |
127 | ||
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. |