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1 | # Format: |
2 | # NAME \t TYPE, arg-description [num-args] [longjump-len] \t DESCRIPTION |
3 | |
4 | # Empty rows and #-comment rows are ignored. |
5 | |
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6 | # Note that the order in this file is important. |
7 | # |
8 | # Add new regops to the end, and do not re-order the existing ops. |
9 | # |
10 | |
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11 | #* Exit points (0,1) |
12 | |
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13 | END END, no End of program. |
14 | SUCCEED END, no Return from a subroutine, basically. |
15 | |
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16 | #* Anchors: (2..13) |
17 | |
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18 | BOL BOL, no Match "" at beginning of line. |
19 | MBOL BOL, no Same, assuming multiline. |
20 | SBOL BOL, no Same, assuming singleline. |
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21 | EOS EOL, no Match "" at end of string. |
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22 | EOL EOL, no Match "" at end of line. |
23 | MEOL EOL, no Same, assuming multiline. |
24 | SEOL EOL, no Same, assuming singleline. |
25 | BOUND BOUND, no Match "" at any word boundary |
26 | BOUNDL BOUND, no Match "" at any word boundary |
27 | NBOUND NBOUND, no Match "" at any word non-boundary |
28 | NBOUNDL NBOUND, no Match "" at any word non-boundary |
29 | GPOS GPOS, no Matches where last m//g left off. |
30 | |
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31 | #* [Special] alternatives: (14..30) |
32 | |
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33 | REG_ANY REG_ANY, no Match any one character (except newline). |
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34 | SANY REG_ANY, no Match any one character. |
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35 | CANY REG_ANY, no Match any one byte. |
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36 | ANYOF ANYOF, sv Match character in (or not in) this class. |
37 | ALNUM ALNUM, no Match any alphanumeric character |
38 | ALNUML ALNUM, no Match any alphanumeric char in locale |
39 | NALNUM NALNUM, no Match any non-alphanumeric character |
40 | NALNUML NALNUM, no Match any non-alphanumeric char in locale |
41 | SPACE SPACE, no Match any whitespace character |
42 | SPACEL SPACE, no Match any whitespace char in locale |
43 | NSPACE NSPACE, no Match any non-whitespace character |
44 | NSPACEL NSPACE, no Match any non-whitespace char in locale |
45 | DIGIT DIGIT, no Match any numeric character |
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46 | DIGITL DIGIT, no Match any numeric character in locale |
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47 | NDIGIT NDIGIT, no Match any non-numeric character |
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48 | NDIGITL NDIGIT, no Match any non-numeric character in locale |
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49 | CLUMP CLUMP, no Match any combining character sequence |
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50 | |
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51 | #* Alternation (31) |
52 | |
53 | # BRANCH The set of branches constituting a single choice are hooked |
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54 | # together with their "next" pointers, since precedence prevents |
55 | # anything being concatenated to any individual branch. The |
56 | # "next" pointer of the last BRANCH in a choice points to the |
57 | # thing following the whole choice. This is also where the |
58 | # final "next" pointer of each individual branch points; each |
59 | # branch starts with the operand node of a BRANCH node. |
60 | # |
61 | BRANCH BRANCH, node Match this alternative, or the next... |
62 | |
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63 | #*Back pointer (32) |
64 | |
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65 | # BACK Normal "next" pointers all implicitly point forward; BACK |
66 | # exists to make loop structures possible. |
67 | # not used |
68 | BACK BACK, no Match "", "next" ptr points backward. |
69 | |
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70 | #*Literals (33..35) |
71 | |
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72 | EXACT EXACT, sv Match this string (preceded by length). |
73 | EXACTF EXACT, sv Match this string, folded (prec. by length). |
74 | EXACTFL EXACT, sv Match this string, folded in locale (w/len). |
75 | |
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76 | #*Do nothing types (36..37) |
77 | |
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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 | |
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82 | #*Loops (38..44) |
83 | |
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84 | # STAR,PLUS '?', and complex '*' and '+', are implemented as circular |
85 | # BRANCH structures using BACK. Simple cases (one character |
86 | # per match) are implemented with STAR and PLUS for speed |
87 | # and to minimize recursive plunges. |
88 | # |
89 | STAR STAR, node Match this (simple) thing 0 or more times. |
90 | PLUS PLUS, node Match this (simple) thing 1 or more times. |
91 | |
92 | CURLY CURLY, sv 2 Match this simple thing {n,m} times. |
93 | CURLYN CURLY, no 2 Match next-after-this simple thing |
94 | # {n,m} times, set parenths. |
95 | CURLYM CURLY, no 2 Match this medium-complex thing {n,m} times. |
96 | CURLYX CURLY, sv 2 Match this complex thing {n,m} times. |
97 | |
98 | # This terminator creates a loop structure for CURLYX |
99 | WHILEM WHILEM, no Do curly processing and see if rest matches. |
100 | |
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101 | #*Buffer related (45..49) |
102 | |
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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. |
106 | |
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. |
110 | |
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111 | #*Grouping assertions (50..54) |
112 | |
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113 | IFMATCH BRANCHJ,off 1 2 Succeeds if the following matches. |
114 | UNLESSM BRANCHJ,off 1 2 Fails if the following matches. |
115 | SUSPEND BRANCHJ,off 1 1 "Independent" sub-RE. |
116 | IFTHEN BRANCHJ,off 1 1 Switch, should be preceeded by switcher . |
117 | GROUPP GROUPP, num 1 Whether the group matched. |
118 | |
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119 | #*Support for long RE (55..56) |
120 | |
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121 | LONGJMP LONGJMP,off 1 1 Jump far away. |
122 | BRANCHJ BRANCHJ,off 1 1 BRANCH with long offset. |
123 | |
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124 | #*The heavy worker (57..58) |
125 | |
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126 | EVAL EVAL, evl 1 Execute some Perl code. |
127 | |
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128 | #*Modifiers (59..60) |
129 | |
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130 | MINMOD MINMOD, no Next operator is not greedy. |
131 | LOGICAL LOGICAL,no Next opcode should set the flag only. |
132 | |
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133 | # This is not used yet (61) |
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134 | RENUM BRANCHJ,off 1 1 Group with independently numbered parens. |
135 | |
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136 | #*Trie Related (62..64) |
137 | |
138 | # Behave the same as A|LIST|OF|WORDS would. The '..C' variants have |
139 | # inline charclass data (ascii only), the 'C' store it in the structure. |
140 | # NOTE: the relative order of the TRIE-like regops is signifigant |
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141 | |
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142 | TRIE TRIE, trie 1 Match many EXACT(FL?)? at once. flags==type |
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143 | TRIEC TRIE, trie charclass Same as TRIE, but with embedded charclass data |
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144 | |
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145 | # For start classes, contains an added fail table. |
146 | AHOCORASICK TRIE, trie 1 Aho Corasick stclass. flags==type |
147 | AHOCORASICKC TRIE, trie charclass Same as AHOCORASICK, but with embedded charclass data |
148 | |
149 | # NEW STUFF ABOVE THIS LINE -- Please update counts below. |
150 | |
151 | #*Special Nodes (65, 66) |
152 | |
153 | # This is not really a node, but an optimized away piece of a "long" node. |
154 | # To simplify debugging output, we mark it as if it were a node |
155 | OPTIMIZED NOTHING,off Placeholder for dump. |
156 | |
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157 | # Special opcode with the property that no opcode in a compiled program |
158 | # will ever be of this type. Thus it can be used as a flag value that |
159 | # no other opcode has been seen. END is used similarly, in that an END |
160 | # node cant be optimized. So END implies "unoptimizable" and PSEUDO mean |
161 | # "not seen anything to optimize yet". |
162 | PSEUDO PSEUDO,off Pseudo opcode for internal use. |
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163 | |
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164 | # NOTHING BELOW HERE |