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64b0ade171
This swaps github.com/kivikakk/golex for github.com/cznic/golex. The old lexer would have taken 3.5 years to load a set of 5000 test rules (quadratic time complexity for input length), whereas this one takes only 32ms. Furthermore, since the new lexer is embedded differently, this gets rid of the global parser variables and makes the rule loader fully reentrant without a lock.
25 lines
822 B
Makefile
25 lines
822 B
Makefile
# Copyright 2013 Prometheus Team
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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all: parser.y.go lexer.l.go
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parser.y.go: parser.y
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go tool yacc -o parser.y.go -v "" parser.y
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lexer.l.go: parser.y.go lexer.l
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# This is golex from https://github.com/cznic/golex.
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golex -o="lexer.l.go" lexer.l
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clean:
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rm lexer.l.go parser.y.go
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