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| author | Bobby Bingham <koorogi@koorogi.info> | 2017-07-25 20:40:03 -0500 |
|---|---|---|
| committer | Bobby Bingham <koorogi@koorogi.info> | 2017-07-25 20:40:03 -0500 |
| commit | 84f31d2352094b1aa0acf8f53dc0194cbec73c51 (patch) | |
| tree | d40ebba29830e9ec2a9842632ce3a80f35f535ad /parse-pattern.y | |
| parent | 4459545e6528c8f072de79b799b9ae9b85d01dfb (diff) | |
simplify by not creating repeat nodes if min=max=1
Diffstat (limited to 'parse-pattern.y')
| -rw-r--r-- | parse-pattern.y | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/parse-pattern.y b/parse-pattern.y index e5acd3c..2c0556a 100644 --- a/parse-pattern.y +++ b/parse-pattern.y @@ -62,7 +62,13 @@ input: ; molecule: - repeat sequence { $$ = mkatom(&(struct atom) { .type = ATOM_REPETITION, .u = { .repeat = { .counts = $1, .child = $2 } } }); } + repeat sequence { + if ($1.min == 1 && $1.max == 1) { + $$ = $2; + } else { + $$ = mkatom(&(struct atom) { .type = ATOM_REPETITION, .u = { .repeat = { .counts = $1, .child = $2 } } }); + } + } ; repeat: |