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| author | Arnold D. Robbins <arnold@skeeve.com> | 2019-07-28 20:09:24 +0300 |
|---|---|---|
| committer | Arnold D. Robbins <arnold@skeeve.com> | 2019-07-28 20:09:24 +0300 |
| commit | c95b96020f9185e64a80fadc9cd770a5d8684aa5 (patch) | |
| tree | 8b7e283a3232d41c477c57e134a52b34097f5fc3 /awkgram.y | |
| parent | 795a06b58cdea7f8bb1858e7c383582c660fdf85 (diff) | |
| download | one-true-awk-c95b96020f9185e64a80fadc9cd770a5d8684aa5.tar.gz | |
Grammar optimization from NetBSD: Two adjacent string constants are merged.
Diffstat (limited to 'awkgram.y')
| -rw-r--r-- | awkgram.y | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -71,6 +71,7 @@ Node *arglist = 0; /* list of args for current function */ %type <i> do st %type <i> pst opt_pst lbrace rbrace rparen comma nl opt_nl and bor %type <i> subop print +%type <cp> string %right ASGNOP %right '?' @@ -348,6 +349,11 @@ subop: SUB | GSUB ; +string: + STRING + | string STRING { $$ = catstr($1, $2); } + ; + term: term '/' ASGNOP term { $$ = op2(DIVEQ, $1, $4); } | term '+' term { $$ = op2(ADD, $1, $3); } @@ -394,7 +400,7 @@ term: | SPLIT '(' pattern comma varname ')' { $$ = op4(SPLIT, $3, makearr($5), NIL, (Node*)STRING); } /* default */ | SPRINTF '(' patlist ')' { $$ = op1($1, $3); } - | STRING { $$ = celltonode($1, CCON); } + | string { $$ = celltonode($1, CCON); } | subop '(' reg_expr comma pattern ')' { $$ = op4($1, NIL, (Node*)makedfa($3, 1), $5, rectonode()); } | subop '(' pattern comma pattern ')' |