mirror of
https://github.com/servo/servo.git
synced 2025-08-07 14:35:33 +01:00
8be014ee46
This directory now contains third_party software that is vendored into the Servo source tree. The idea is that it would eventually hold webrender and other crates from mozilla-central as well with a standard patch management approach for each.
48 lines
1 KiB
Python
48 lines
1 KiB
Python
# -----------------------------------------------------------------------------
|
|
# hedit.py
|
|
#
|
|
# Paring of Fortran H Edit descriptions (Contributed by Pearu Peterson)
|
|
#
|
|
# These tokens can't be easily tokenized because they are of the following
|
|
# form:
|
|
#
|
|
# nHc1...cn
|
|
#
|
|
# where n is a positive integer and c1 ... cn are characters.
|
|
#
|
|
# This example shows how to modify the state of the lexer to parse
|
|
# such tokens
|
|
# -----------------------------------------------------------------------------
|
|
|
|
import sys
|
|
sys.path.insert(0, "../..")
|
|
|
|
|
|
tokens = (
|
|
'H_EDIT_DESCRIPTOR',
|
|
)
|
|
|
|
# Tokens
|
|
t_ignore = " \t\n"
|
|
|
|
|
|
def t_H_EDIT_DESCRIPTOR(t):
|
|
r"\d+H.*" # This grabs all of the remaining text
|
|
i = t.value.index('H')
|
|
n = eval(t.value[:i])
|
|
|
|
# Adjust the tokenizing position
|
|
t.lexer.lexpos -= len(t.value) - (i + 1 + n)
|
|
|
|
t.value = t.value[i + 1:i + 1 + n]
|
|
return t
|
|
|
|
|
|
def t_error(t):
|
|
print("Illegal character '%s'" % t.value[0])
|
|
t.lexer.skip(1)
|
|
|
|
# Build the lexer
|
|
import ply.lex as lex
|
|
lex.lex()
|
|
lex.runmain()
|