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32 | reyssat | 1 | !! +exec+ +var+ +string+ |
2 | $lst_tit replace$lst_titend$type_both |
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3 | $(lst_syntax)replace [internal] $emph s1 $emphend by $emph s2 $emphend in $emph |
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5766 | bpr | 4 | string$emphend<br/> |
32 | reyssat | 5 | </tt>or <tt>!replace $emph obj$emphend $emph ident$emphend by |
4562 | bpr | 6 | $emph s$emphend in $emph string$emphend</tt> |
32 | reyssat | 7 | $lst_mean String manipulation. <p> |
8 | Under the first syntax, variable substitution is first done on |
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9 | $emph string$emphend. Then all occurences of substring $emph s1$emphend |
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5766 | bpr | 10 | are replaced by $emph s2$emphend. <br/> |
32 | reyssat | 11 | When the keyword $emph internal $emphend is absent, |
12 | the Linux utility $emph sed$emphend is called to make the replacements, |
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13 | therefore regular expressions are accepted in $emph s1$emphend and |
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14 | $emph s2$emphend. Please refer to the man page of $emph sed$emphend for |
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5920 | bpr | 15 | details. </p><p> |
32 | reyssat | 16 | Under the second syntax, $emph obj$emphend can be $emph char$emphend, |
17 | $emph word$emphend, |
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18 | $emph item$emphend or $emph line$emphend. Then the word, item or line |
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19 | identified by $emph ident$emphend in $emph string$emphend is replaced |
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5766 | bpr | 20 | by $emph s$emphend, after variable substitutions. <br/> |
32 | reyssat | 21 | $emph ident$emphend can be a string, in this case all objects |
22 | (words, items or lines) matching |
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23 | $emph ident$emphend will be replaced. It can also be a number (positive or |
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24 | negative integer $emph n$emphend), preceded |
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25 | by the word $emph number$emphend. In this case the object |
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26 | number $emph n$emphend will be replaced. (In the case where n<0, |
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27 | it is the last -n'th object which is replaced.) |
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5920 | bpr | 28 | </p> |