tcl/python text handling
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These are examples of text filtering in both TCL and Python. This is my first foray into scripting with both TCL and Python, which affords me the opportunity to hurt my brain trying to recall the differences in style and form of both languages.
string match function
I implemented text handling in two different ways in both TCL and Python. The first example is by using a string match function.
tcl string match
foreach item $rawtext {
if {[string match -nocase *u* $item] 1} {
puts [string trim $item 'tn,./!@#$^*()']
}
}
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python string match
Tcl Regular Expression Cheat Sheet Download
for word in text[:]:
if word.find('u') != -1:
print word.strip('tn,./!@#$^*()')
regex implementation
Next, I used a regular expression to accomplish the same task. Regular Expressions (regex) can be efficient for pattern matching and interpreting complex lists.
Tcl Regular Expression Cheat Sheet 2019
tcl regex
foreach item $rawtext {
if {[regexp {u|U+} $item] 1} {
puts [string trim $item 'tn,./!@#$^*()']
}
}
python regex
Firefox for mac high sierra. for word in text[:]:
containU = 'u|U+'
if re.search(containU, word):
print word.strip('tn,./!@#$^*()')
The regular expression I used above is really simple, but these can be chained together to test for an incredible range in patterns. Here's a cheat sheet. (png, 84kb)