Find & Replace, Variables in text questions

[Gintaras]

i.
Simplest replacement

Code:

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str template en fn

;lets create template text for testing. Normally you would probably use template.getfile("...").
template=
;...
;... <a href="http://nonprofit.org/mediafiles/{FN}">{EN}</a> ...
;...

;set fn and en
fn="filename.jpg"
en="right-click to download"

;replace
template.findreplace("{FN}" fn)
template.findreplace("{EN}" en)

out template

;{EN} and {FN} here used as examples of placeholders for variables in the template.


Replacement using regular expressions

Code:

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str template en fn

;lets create template text for testing. Normally you would probably use template.getfile("...").
template=
;...
;... <a href="http://nonprofit.org/mediafiles/{FN}">{EN}</a> ...
;...

;set fn and en
fn="filename.jpg"
en="right-click to download"

;Replace text in template. Use regular expression.

;to make more clear, I at first store the regular expression to rx variable and give some explanations
str rx="(<a href=''http://nonprofit.org/mediafiles/)\{FN\}''>\{EN\}</a>"
;\;- used to escape { and } because they are special characters in regex syntax
;() - used to mark parts of text
;Here '' is used for ". It is not part of regular expression syntax.

;the replacement must contain variables, therefore we need to format it at first
str repl.format("$1%s''>%s</a>" fn en) ;;replaces %s to values of fn and en. Regex specific: $1 represents the enclosed part

;now replace
template.replacerx(rx repl 1)

out template

;In real world, the regular expression should be more sophisticated, eg use \s instead of space (because it may be line break)

;{EN} and {FN} here used as examples of placeholders for variables in the template.


ii.
Hope the above will help with it.