Globally replace text in several files: Difference between revisions
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(→{{header|Haskell}}: Added a variant implementation of `replace`) |
m (→{{header|Phix}}: added syntax colouring, marked p2js incompatible) |
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as hinted, you could probably improve on the error handling.<br> |
as hinted, you could probably improve on the error handling.<br> |
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get_text is deliberately limited to 1GB, for larger files use a temporary file, a loop of gets/puts, and delete_file/rename_file at the end. |
get_text is deliberately limited to 1GB, for larger files use a temporary file, a loop of gets/puts, and delete_file/rename_file at the end. |
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<!--<lang Phix>(notonline)--> |
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<lang Phix>procedure global_replace(string s, string r, sequence file_list) |
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<span style="color: #008080;">without</span> <span style="color: #008080;">js</span> <span style="color: #000080;font-style:italic;">-- file i/o</span> |
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for i=1 to length(file_list) do |
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">global_replace</span><span style="color: #0000FF;">(</span><span style="color: #004080;">string</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">string</span> <span style="color: #000000;">r</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">sequence</span> <span style="color: #000000;">file_list</span><span style="color: #0000FF;">)</span> |
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string filename = file_list[i] |
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<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #7060A8;">length</span><span style="color: #0000FF;">(</span><span style="color: #000000;">file_list</span><span style="color: #0000FF;">)</span> <span style="color: #008080;">do</span> |
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integer fn = open(filename,"rb") |
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<span style="color: #004080;">string</span> <span style="color: #000000;">filename</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">file_list</span><span style="color: #0000FF;">[</span><span style="color: #000000;">i</span><span style="color: #0000FF;">]</span> |
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if fn=-1 then ?9/0 end if -- message/retry? |
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<span style="color: #004080;">integer</span> <span style="color: #000000;">fn</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">open</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"rb"</span><span style="color: #0000FF;">)</span> |
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string text = get_text(fn) |
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<span style="color: #008080;">if</span> <span style="color: #000000;">fn</span><span style="color: #0000FF;">=-</span><span style="color: #000000;">1</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">?</span><span style="color: #000000;">9</span><span style="color: #0000FF;">/</span><span style="color: #000000;">0</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span> <span style="color: #000080;font-style:italic;">-- message/retry?</span> |
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close(fn) |
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<span style="color: #004080;">string</span> <span style="color: #000000;">text</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">get_text</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">)</span> |
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text = substitute(text,s,r) |
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<span style="color: #7060A8;">close</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">)</span> |
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fn = open(filename,"wb") |
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<span style="color: #000000;">text</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">substitute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">text</span><span style="color: #0000FF;">,</span><span style="color: #000000;">s</span><span style="color: #0000FF;">,</span><span style="color: #000000;">r</span><span style="color: #0000FF;">)</span> |
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puts(fn,text) |
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<span style="color: #000000;">fn</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">open</span><span style="color: #0000FF;">(</span><span style="color: #000000;">filename</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"wb"</span><span style="color: #0000FF;">)</span> |
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close(fn) |
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<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">,</span><span style="color: #000000;">text</span><span style="color: #0000FF;">)</span> |
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end for |
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<span style="color: #7060A8;">close</span><span style="color: #0000FF;">(</span><span style="color: #000000;">fn</span><span style="color: #0000FF;">)</span> |
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end procedure |
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<span style="color: #008080;">end</span> <span style="color: #008080;">for</span> |
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span> |
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sequence file_list = {"ctrace.out"} |
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global_replace("Goodbye London!", "Hello New York!", file_list)</lang> |
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<span style="color: #004080;">sequence</span> <span style="color: #000000;">file_list</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span><span style="color: #008000;">"ctrace.out"</span><span style="color: #0000FF;">}</span> |
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<span style="color: #000000;">global_replace</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Goodbye London!"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Hello New York!"</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">file_list</span><span style="color: #0000FF;">)</span> |
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<!--</lang>--> |
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=={{header|PicoLisp}}== |
=={{header|PicoLisp}}== |
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