mirror of
https://github.com/fish-shell/fish-shell.git
synced 2025-02-21 01:48:08 +08:00
Some improvements in bash configuration importer script
This commit is contained in:
Siteshwar Vashisht
parent
631d27f7a8
commit
602109bd8d
195
share/tools/bash_converter.py
Executable file
195
share/tools/bash_converter.py
Executable file
@ -0,0 +1,195 @@
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#!/usr/bin/env python
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IN_WORD, IN_SINGLE_QUOTES, IN_DOUBLE_QUOTES = 0, 1, 2
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global IN_BACKTICK
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IN_BACKTICK = False
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#Find outside quotes
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def contains_outside_quotes(input, ch):
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in_quotes = False
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i = 0
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while i < len(input):
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if input[i] == ch and in_quotes == False:
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return True
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elif input[i] == '\\' and in_quotes == True:
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i = i+1
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elif input[i] == '"':
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in_quotes = not in_quotes
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elif input[i] == "'" and not in_quotes:
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i = i + 1
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while input[i] != "'":
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i = i + 1
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i = i + 1
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return False
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#Replace characters outside double quotes
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def replace_outside_quotes(input, oldchar, newchar, change_all = True):
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in_quotes = False
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newstr = []
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i = 0
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while i < len(input):
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if input[i] == oldchar and in_quotes == False:
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newstr.append(newchar)
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i = i+1
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if change_all == True:
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continue
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else:
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while i < len(input):
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newstr.append(input[i])
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i = i + 1
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#Break loop and return all the characters in list by joining them
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break
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elif input[i] == '\\' and in_quotes == True:
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newstr.append(input[i])
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i = i+1
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elif input[i] == '"':
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in_quotes=not in_quotes
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elif input[i] == "'" and not in_quotes:
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newstr.append(input[i])
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i = i + 1
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while input[i] != "'":
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newstr.append(input[i])
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i = i + 1
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newstr.append(input[i])
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i = i + 1
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return ''.join(newstr)
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def export_handler(tokens):
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# print "Export Handler: ", tokens
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if contains_outside_quotes(tokens[0], "="):
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tokens[0] = replace_outside_quotes(tokens[0], "=", " ", False)
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args = ' '.join(tokens)
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return "set -gx " + args
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global bash_builtins
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bash_builtins = {
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"export" : export_handler
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}
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def process_builtin(tokens):
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builtin_name = tokens[0]
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# print "Builtin name is: ", builtin_name
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return (bash_builtins[builtin_name])(tokens[1:])
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def process_command(tokens):
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cmd = ' '.join(tokens)
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return cmd
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def parse_input(input, output_buff):
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i = 0
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state = IN_WORD
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tokens = []
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current_value = ""
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while (i<len(input)):
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if state == IN_WORD:
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if input[i] == " ":
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if len(current_value) > 0:
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tokens.append(current_value)
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current_value = ""
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elif input[i] == "'":
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state = IN_SINGLE_QUOTES
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current_value = current_value + input[i]
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elif input[i] == '"':
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state = IN_DOUBLE_QUOTES
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current_value = current_value + input[i]
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elif input[i] == "`":
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global IN_BACKTICK
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if IN_BACKTICK == True:
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current_value = current_value + ")"
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else:
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current_value = current_value + "("
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IN_BACKTICK = not IN_BACKTICK
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elif input[i] == ";":
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if len(current_value) > 0:
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tokens.append(current_value)
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# print tokens
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if contains_outside_quotes(tokens[0], "="):
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tokens[0] = replace_outside_quotes(tokens[0], "=", " ", False)
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args = ' '.join(tokens)
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output_buff += "\n\tset " + args
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elif tokens[0] in bash_builtins.keys():
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output_buff += "\n\t" + process_builtin(tokens)
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else:
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output_buff += "\n\t" + process_command(tokens)
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current_value = ""
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del tokens[:]
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elif input[i] == "&":
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if input[i+1] == "&":
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current_value = current_value + "and"
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i = i + 1
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else:
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current_value = current_value + input[i]
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elif input[i] == "{":
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value_len = len(current_value)
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if (value_len > 0 and current_value[value_len - 1] == "$"):
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current_value = current_value[:value_len - 1]
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current_value = current_value + "{"
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current_value = current_value + "$"
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else:
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current_value = current_value + input[i]
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elif state == IN_DOUBLE_QUOTES:
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current_value = current_value + input[i]
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# print current_value
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if input[i] == '"':
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state = IN_WORD
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tokens.append(current_value)
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current_value = ""
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#Let's ignore escaped characters
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elif input[i] == "\\":
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# print "In backslash"
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i = i + 1
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current_value = current_value + input[i]
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elif state == IN_SINGLE_QUOTES:
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current_value = current_value + input[i]
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if input[i] == "'":
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state = IN_WORD
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tokens.append(current_value)
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current_value = ""
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i = i + 1
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if len(current_value) > 0:
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tokens.append(current_value)
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# print tokens
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if contains_outside_quotes(tokens[0], "="):
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tokens[0] = replace_outside_quotes(tokens[0], "=", " ", False)
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args = ' '.join(tokens)
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output_buff += "\n\tset " + args
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elif tokens[0] in bash_builtins.keys():
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output_buff += "\n\t" + process_builtin(tokens)
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else:
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output_buff += "\n\t" + process_command(tokens)
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return output_buff
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if __name__ == "__main__":
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import sys
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data = sys.stdin.read()
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# data = 'echo "This is a message\\"'
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# data = "export a=b; export c=d; `echo 'HI'`; a=b; echo ${abc} "
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parse_input(data)
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@ -16,7 +16,10 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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import os, sys, re
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import bash_converter
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config_file = None
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output_buff = ""
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prompt_buff = ""
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i = 0
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quote_started = False
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@ -24,276 +27,273 @@ bash_builtins = ["export"]
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#Remove leading and trailing single quotes from a string
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def remove_single_quotes(input):
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start = 0
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end = len(input)
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if input[0] == "'":
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start = 1
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if input[end-1] == "'":
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end = end - 1
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return input[start:end]
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start = 0
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end = len(input)
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if input[0] == "'":
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start = 1
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if input[end-1] == "'":
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end = end - 1
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return input[start:end]
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#Find outside quotes
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def contains_outside_quotes(input, ch):
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in_quotes = False
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in_quotes = False
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i = 0
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while i < len(input):
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if input[i] == ch and in_quotes == False:
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return True
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elif input[i] == '\\' and in_quotes == True:
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i = i+1
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elif input[i] == '"':
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in_quotes = not in_quotes
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elif input[i] == "'" and not in_quotes:
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i = i + 1
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while input[i] != "'":
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i = i + 1
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i = 0
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while i < len(input):
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if input[i] == ch and in_quotes == False:
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return True
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elif input[i] == '\\' and in_quotes == True:
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i = i+1
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elif input[i] == '"':
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in_quotes = not in_quotes
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elif input[i] == "'" and not in_quotes:
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i = i + 1
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while input[i] != "'":
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i = i + 1
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i = i + 1
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i = i + 1
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return False
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return False
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#Replace characters outside double quotes
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def replace_outside_quotes(input, oldchar, newchar, change_all = True):
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in_quotes = False
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newstr = []
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in_quotes = False
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newstr = []
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i = 0
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while i < len(input):
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if input[i] == oldchar and in_quotes == False:
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newstr.append(newchar)
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i = i+1
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i = 0
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while i < len(input):
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if input[i] == oldchar and in_quotes == False:
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newstr.append(newchar)
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i = i+1
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if change_all == True:
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continue
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else:
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while i < len(input):
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newstr.append(input[i])
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i = i + 1
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#Break loop and return all the characters in list by joining them
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break
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elif input[i] == '\\' and in_quotes == True:
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newstr.append(input[i])
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i = i+1
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elif input[i] == '"':
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in_quotes=not in_quotes
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elif input[i] == "'" and not in_quotes:
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newstr.append(input[i])
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i = i + 1
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while input[i] != "'":
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newstr.append(input[i])
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i = i + 1
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if change_all == True:
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continue
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else:
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while i < len(input):
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newstr.append(input[i])
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i = i + 1
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#Break loop and return all the characters in list by joining them
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break
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elif input[i] == '\\' and in_quotes == True:
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newstr.append(input[i])
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i = i+1
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elif input[i] == '"':
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in_quotes=not in_quotes
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elif input[i] == "'" and not in_quotes:
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newstr.append(input[i])
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i = i + 1
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while input[i] != "'":
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newstr.append(input[i])
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i = i + 1
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newstr.append(input[i])
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i = i + 1
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newstr.append(input[i])
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i = i + 1
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return ''.join(newstr)
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return ''.join(newstr)
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#Parse input passed to the script
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def parse_input(input):
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env_regex = re.compile("(.*?)=(.*)")
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env_regex_matched = re.search(env_regex, input)
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global output_buff
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env_regex = re.compile("(.*?)=(.*)")
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env_regex_matched = re.search(env_regex, input)
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while env_regex_matched != None:
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env_name = env_regex_matched.group(1)
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env_value = env_regex_matched.group(2)
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env_var = env_regex_matched.group(0)
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while env_regex_matched != None:
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env_name = env_regex_matched.group(1)
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env_value = env_regex_matched.group(2)
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env_var = env_regex_matched.group(0)
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if env_name[:5] == "alias":
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add_alias(env_name[6:], env_value)
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elif env_name == "PS1":
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parse_bash_prompt(env_value)
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elif env_name == "PATH":
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config_file.write("set -x " + env_name + ' ' + env_value.replace(":"," ") )
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else:
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config_file.write("set_default " + env_name + ' "' + env_value + '"')
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#Move to next line
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config_file.write("\n")
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input = input[env_regex_matched.end():]
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env_regex_matched = re.search(env_regex, input)
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if env_name[:5] == "alias":
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add_alias(env_name[6:], env_value)
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input = input[env_regex_matched.end():]
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elif env_name == "PS1":
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if len(env_value) > 0:
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parse_bash_prompt(env_value)
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input = input[env_regex_matched.end():]
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elif env_name == "PATH":
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output_buff += "set -x " + env_name + ' ' + env_value.replace(":"," ")
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input = input[env_regex_matched.end():]
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else:
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full_value = env_value
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input = input[env_regex_matched.end():]
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while len(env_value) > 0 and env_value[len(env_value)-1] == "\\":
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one_line_regex = re.compile("\n.*")
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one_line_matched = re.search(one_line_regex, input)
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env_value = one_line_matched.group(0)
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full_value = full_value + env_value
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input = input[one_line_matched.end():]
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output_buff += "set_default " + env_name + ' "' + full_value + '"'
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#Move to next line
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output_buff += "\n"
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config_file.write(output_buff)
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output_buff = ""
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env_regex_matched = re.search(env_regex, input)
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#Add an alias as a function in fish
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def add_alias(alias_name, alias_value):
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alias_value = remove_single_quotes(alias_value)
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global output_buff
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alias_value = remove_single_quotes(alias_value)
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while contains_outside_quotes(alias_value,"`"):
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alias_value = replace_outside_quotes(alias_value, '`', '(', False)
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alias_value = replace_outside_quotes(alias_value, '`', ')', False)
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config_file.write("function " + alias_name)
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for line in alias_value.split(";"):
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line = line.strip()
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tokens = line.split(' ')
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first_token = tokens[0].strip()
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if first_token in bash_builtins:
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sys.stderr.write("{0} is a bash builtin".format(first_token, ))
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if first_token == "export":
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var_regex = re.compile("(.*?)=(.*)")
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var_regex_matched = re.search(var_regex, line[7:])
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if var_regex_matched != None:
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stripped_name = var_regex_matched.group(1).strip()
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config_file.write("\n\tset -gx " + var_regex_matched.group(1).strip() + " " + var_regex_matched.group(2).strip())
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else:
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export_name = line[6:].strip()
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config_file.write("\n\tset -gx " + export_name + " $" + export_name )
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elif "=" in first_token:
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var_regex = re.compile("(.*?)=(.*)")
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var_regex_matched = re.search(var_regex, line)
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if var_regex_matched != None:
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stripped_name = var_regex_matched.group(1).strip()
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config_file.write("\n\tset " + var_regex_matched.group(1).strip() + " " + var_regex_matched.group(2).strip() )
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else:
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if len(line.strip()) > 0:
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config_file.write( "\n\t" + line.strip() )
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config_file.write(" $argv\nend;\n")
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output_buff += "function " + alias_name
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output_buff = bash_converter.parse_input(alias_value, output_buff)
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output_buff += " $argv\nend;\n"
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def parse_control_sequence():
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ch = next_prompt_char()
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ch2 = None
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while (ch != ""):
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if ch == "\\":
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ch2 = next_prompt_char()
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if (ch2 == "]"):
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return
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ch = next_prompt_char()
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ch = next_prompt_char()
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ch2 = None
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while (ch != ""):
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if ch == "\\":
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ch2 = next_prompt_char()
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if (ch2 == "]"):
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return
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ch = next_prompt_char()
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def is_digit(ch):
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if ch>='0' and ch<='9':
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return True
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return False
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if ch>='0' and ch<='9':
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return True
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return False
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def set_prompt_buff(value):
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global i, buff
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i = 0
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buff = value
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global i, buff
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i = 0
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buff = value
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def next_prompt_char():
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global i, buff
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if (i < len(buff)):
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next = buff[i]
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i = i+1
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else:
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next = ""
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return next
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global i, buff
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if (i < len(buff)):
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next = buff[i]
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i = i+1
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else:
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next = ""
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return next
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def unget_prompt_char():
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global i
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i = i - 1
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global i
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i = i - 1
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def add_to_echo(str, is_special=True):
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global quote_started
|
||||
|
||||
if (is_special == True):
|
||||
if (quote_started == True):
|
||||
config_file.write('"')
|
||||
quote_started = False
|
||||
else:
|
||||
if (quote_started == False):
|
||||
config_file.write('"')
|
||||
quote_started = True
|
||||
global quote_started
|
||||
|
||||
if (is_special == True):
|
||||
if (quote_started == True):
|
||||
config_file.write('"')
|
||||
quote_started = False
|
||||
else:
|
||||
if (quote_started == False):
|
||||
config_file.write('"')
|
||||
quote_started = True
|
||||
|
||||
config_file.write(str)
|
||||
config_file.write(str)
|
||||
|
||||
def check_end_quote():
|
||||
global quote_started
|
||||
global quote_started
|
||||
|
||||
if quote_started == True:
|
||||
config_file.write('"')
|
||||
if quote_started == True:
|
||||
# print "Ending quote",
|
||||
config_file.write('"')
|
||||
|
||||
def parse_bash_prompt(bash_prompt):
|
||||
set_prompt_buff(bash_prompt)
|
||||
config_file.write("function fish_prompt\n")
|
||||
set_prompt_buff(bash_prompt)
|
||||
|
||||
if ("\\$" in bash_prompt):
|
||||
config_file.write("\tif test (id -u) -eq \"0\"\n")
|
||||
config_file.write("\t\tset uid_prompt \"#\"\n")
|
||||
config_file.write("\telse\n")
|
||||
config_file.write("\t\tset uid_prompt \"\\$\"\n")
|
||||
config_file.write("\tend;\n")
|
||||
config_file.write("function fish_prompt\n")
|
||||
|
||||
config_file.write('\techo -n ')
|
||||
if ("\\$" in bash_prompt):
|
||||
config_file.write("\tif test (id -u) -eq \"0\"\n")
|
||||
config_file.write("\t\tset uid_prompt \"#\"\n")
|
||||
config_file.write("\telse\n")
|
||||
config_file.write("\t\tset uid_prompt \"\\$\"\n")
|
||||
config_file.write("\tend;\n")
|
||||
|
||||
ch = next_prompt_char()
|
||||
ch2 = None
|
||||
while (ch != ""):
|
||||
if ( ch == "\\"):
|
||||
ch2 = next_prompt_char()
|
||||
if (ch2 == ""):
|
||||
continue
|
||||
elif (ch2 == "a"):
|
||||
add_to_echo('\\a')
|
||||
elif (ch2 == "d"):
|
||||
add_to_echo('(date +"%a %b %d")')
|
||||
elif (ch2 == "e"):
|
||||
sys.std.out.write('\e')
|
||||
elif (ch2 == "h"):
|
||||
add_to_echo("(hostname | cut -d\".\" -f1)")
|
||||
elif (ch2 == "H"):
|
||||
add_to_echo("(hostname)")
|
||||
elif (ch2 == "j"):
|
||||
add_to_echo("(jobs | wc -l)")
|
||||
elif (ch2 == "l"):
|
||||
add_to_echo("basename (tty)")
|
||||
elif (ch2 == "n"):
|
||||
add_to_echo(' \\n ')
|
||||
elif (ch2 == "r"):
|
||||
add_to_echo(' \\r ')
|
||||
elif (ch2 == "s"):
|
||||
add_to_echo("fish", False)
|
||||
elif (ch2 == "t"):
|
||||
add_to_echo('(date +"%H:%M:%S")')
|
||||
elif (ch2 == "T"):
|
||||
add_to_echo('(date +"%I:%M:%S")')
|
||||
elif (ch2 == "@"):
|
||||
add_to_echo('(date +"%I:%M %p")')
|
||||
elif (ch2 == "u"):
|
||||
add_to_echo("$USER")
|
||||
elif (ch2 == "w"):
|
||||
add_to_echo("(pwd)")
|
||||
elif (ch2 == "W"):
|
||||
add_to_echo("(basename ( pwd ) )")
|
||||
elif (ch2 == "$"):
|
||||
add_to_echo(" $uid_prompt ")
|
||||
elif (is_digit(ch2)):
|
||||
temp = int(ch2)
|
||||
ch = next_prompt_char()
|
||||
if (is_digit(ch)):
|
||||
temp = (temp*8) + int(ch)
|
||||
else:
|
||||
add_to_echo(chr(temp), False)
|
||||
unget_prompt_char()
|
||||
ch = next_prompt_char()
|
||||
if (is_digit(ch)):
|
||||
temp = ((temp/10)*64) + ((temp%10)*8) + int(ch)
|
||||
add_to_echo(chr(temp), False)
|
||||
else:
|
||||
add_to_echo(chr(temp), False)
|
||||
unget_prompt_char()
|
||||
elif (ch2 == "\\"):
|
||||
add_to_echo("\\")
|
||||
elif (ch2 == "["):
|
||||
parse_control_sequence()
|
||||
elif (ch2 == "]"):
|
||||
print("Unexpected ]")
|
||||
elif (ch2 == "v" or ch2 == "V"):
|
||||
add_to_echo("(fish -v 2>| cut -d\" \" -f3)")
|
||||
else:
|
||||
print("Unknown escape character")
|
||||
else:
|
||||
add_to_echo(ch,False)
|
||||
ch = next_prompt_char()
|
||||
check_end_quote()
|
||||
config_file.write("\nend\n")
|
||||
config_file.write('\techo -n ')
|
||||
|
||||
ch = next_prompt_char()
|
||||
ch2 = None
|
||||
while (ch != ""):
|
||||
if ( ch == "\\"):
|
||||
ch2 = next_prompt_char()
|
||||
if (ch2 == ""):
|
||||
continue
|
||||
elif (ch2 == "a"):
|
||||
add_to_echo('\\a')
|
||||
elif (ch2 == "d"):
|
||||
add_to_echo(' (date +"%a %b %d")')
|
||||
elif (ch2 == "e"):
|
||||
add_to_echo('\e')
|
||||
elif (ch2 == "h"):
|
||||
add_to_echo("(hostname | cut -d\".\" -f1)")
|
||||
elif (ch2 == "H"):
|
||||
add_to_echo("(hostname)")
|
||||
elif (ch2 == "j"):
|
||||
add_to_echo("(jobs | wc -l)")
|
||||
elif (ch2 == "l"):
|
||||
add_to_echo("basename (tty)")
|
||||
elif (ch2 == "n"):
|
||||
add_to_echo(' \\n ')
|
||||
elif (ch2 == "r"):
|
||||
add_to_echo(' \\r ')
|
||||
elif (ch2 == "s"):
|
||||
add_to_echo("fish", False)
|
||||
elif (ch2 == "t"):
|
||||
add_to_echo('(date +"%H:%M:%S")')
|
||||
elif (ch2 == "T"):
|
||||
add_to_echo('(date +"%I:%M:%S")')
|
||||
elif (ch2 == "@"):
|
||||
add_to_echo('(date +"%I:%M %p")')
|
||||
elif (ch2 == "u"):
|
||||
add_to_echo("$USER")
|
||||
elif (ch2 == "w"):
|
||||
add_to_echo("(pwd)")
|
||||
elif (ch2 == "W"):
|
||||
add_to_echo("(basename ( pwd ) )")
|
||||
elif (ch2 == "$"):
|
||||
add_to_echo("$uid_prompt ")
|
||||
elif (is_digit(ch2)):
|
||||
temp = int(ch2)
|
||||
ch = next_prompt_char()
|
||||
if (is_digit(ch)):
|
||||
temp = (temp*8) + int(ch)
|
||||
else:
|
||||
add_to_echo(chr(temp), False)
|
||||
unget_prompt_char()
|
||||
ch = next_prompt_char()
|
||||
if (is_digit(ch)):
|
||||
temp = ((temp/10)*64) + ((temp%10)*8) + int(ch)
|
||||
add_to_echo(chr(temp), False)
|
||||
else:
|
||||
add_to_echo(chr(temp), False)
|
||||
unget_prompt_char()
|
||||
elif (ch2 == "\\"):
|
||||
add_to_echo("\\")
|
||||
elif (ch2 == "["):
|
||||
parse_control_sequence()
|
||||
elif (ch2 == "]"):
|
||||
# print "Unexpected ]"
|
||||
pass
|
||||
elif (ch2 == "v" or ch2 == "V"):
|
||||
add_to_echo("(fish -v 2>| cut -d\" \" -f3)")
|
||||
else:
|
||||
# print "Unknown escape character"
|
||||
pass
|
||||
else:
|
||||
if (ch == "$"):
|
||||
add_to_echo("\\", False)
|
||||
|
||||
add_to_echo(ch,False)
|
||||
ch = next_prompt_char()
|
||||
check_end_quote()
|
||||
config_file.write("\nend\n")
|
||||
|
||||
if __name__ == "__main__":
|
||||
input = sys.stdin.read()
|
||||
config_file = open("{0}/.config/fish/bash_config.fish".format(os.environ["HOME"]),"a")
|
||||
parse_input(input)
|
||||
input = sys.stdin.read()
|
||||
config_file = open("{0}/.config/fish/bash_config.fish".format(os.environ["HOME"]),"a")
|
||||
parse_input(input)
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user