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7271fb9de3
* step * step * step * step * step * step * step * whitespace * programmatic reformat * BNF-formatter automation * run tools/build-dsl
65 lines
1.6 KiB
Python
Executable file
65 lines
1.6 KiB
Python
Executable file
#!/usr/bin/env python
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# ================================================================
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# Run pkg/parsing/mlr.bnf through this filter to reformat the Go code.
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# This only finds the Go code if the "<<" and the ">>" are on blank
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# lines before and after.
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# ================================================================
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import sys
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import re
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import subprocess
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in_dsl = False
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dsl_lines = []
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while True:
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line = sys.stdin.readline()
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if line == '':
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break
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line = line.rstrip()
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if re.match("^ *<<$", line):
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in_dsl = True
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print(line)
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elif re.match("^ *>>$", line):
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in_dsl = False
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in_block = "\n".join(dsl_lines)
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in_block = re.sub(r'\$', 'DOLLAR_', in_block)
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result = subprocess.run(
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['gofmt'],
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input=in_block,
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capture_output=True,
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text=True,
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)
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if result.returncode == 0:
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out_block = result.stdout
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out_block = re.sub('DOLLAR_', '$', out_block)
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out_block = re.sub('\t',' ', out_block)
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out_lines = out_block.split("\n")
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for out_line in out_lines:
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out_line = re.sub(r"\s*$", "", out_line)
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if out_line != "":
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print(" " + out_line)
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else:
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print()
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print(result.stdout)
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print(result.stderr)
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print()
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print("Exiting!")
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print()
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sys.exit(1)
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print(line)
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dsl_lines = []
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elif in_dsl:
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dsl_lines.append(line)
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else:
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#print("OUTSIDE")
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print(line)
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