Python find and replace strings in files with argument that the string is quoted and not part of bigger string

Asked
Active3 hr before
Viewed126 times

7 Answers

stringsreplacepythonstring
90%

Here’s the vsearch,py file once more, with a docstring added to the top of the function

Example_snippet/controller/utility/_strings.js/ >>> search4vowels() Provide a . . .
>>> search4vowels()
Provide a word to search
for vowels: hitch - hiker
e
i
Step 2 continued with >>> search4vowels() Provide a . . .
>>> search4vowels()
Provide a word to search
for vowels: galaxy
a
load more v
88%

Strings can begin and end with double quotes, just as they do with single quotes, One benefit of using double quotes is that the string can have a single quote character in it

Example_snippet/controller/utility/_strings.js/ >>> spam = "That is Alice's ca. . .
>>> spam = "That is Alice's cat."
load more v
72%

If you need to search and replace in more than one file, press Ctrl+Shift+R,,Enter a search string in the top field and a replace string in the bottom field

Example_snippet/controller/utility/_strings.js/ \. . .
\
load more v
65%

One place where the Python language really shines is in the manipulation of strings, This section will cover some of Python's built-in string methods and formatting operations, before moving on to a quick guide to the extremely useful subject of regular expressions

Example_snippet/controller/utility/_strings.js/ x = 'a string' y = "a string" . . .
x = 'a string'
y = "a string"
x == y
load more v
75%

A regular expression (or RE) specifies a set of strings that matches it; the functions in this module let you check if a particular string matches a given regular expression (or if a given regular expression matches a particular string, which comes down to the same thing),,The text categories are specified with regular expressions

Example_snippet/controller/utility/_strings.js/ >>> import re >>> m = re.searc. . .
>>>
import re
   >>>
   m = re.search('(?<=abc)def', 'abcdef') >>>
   m.group(0)
'def'
load more v
40%

Here is a short example that should do the trick with regular expressions:,Here is a version with support for basic regex replacement, The main restriction is that expressions must not contain subgroups, and there may be some edge cases:,where text is the complete string and dic is a dictionary — each definition is a string that will replace a match to the term

Example_snippet/controller/utility/_strings.js/ import re rep = {"condition1". . .
import re

rep = {
   "condition1": "",
   "condition2": "text"
}
# define desired replacements here

# use these three lines to do the replacement
rep = dict((re.escape(k), v) for k, v in rep.iteritems())
#Python 3 renamed dict.iteritems to dict.items so use rep.items() for latest versions
pattern = re.compile("|".join(rep.keys()))
text = pattern.sub(lambda m: rep[re.escape(m.group(0))], text)
Step 2 continued with >>> pattern.sub(lambda m: rep[. . .
>>> pattern.sub(lambda m: rep[re.escape(m.group(0))], "(condition1) and --condition2--")
'() and --text--'
load more v
22%

Example_snippet/controller/utility/_strings.js/ # Read in the file with open('. . .
# Read in the file
with open('file.txt', 'r') as file:
   filedata = file.read()

# Replace the target string
filedata = filedata.replace('ram', 'abcd')

# Write the file out again
with open('file.txt', 'w') as file:
   file.write(filedata)
load more v