$read » History » Version 2
Per Amundsen, 02/23/2023 07:22 PM
1 | 1 | Per Amundsen | _Added in 1.9.0_ |
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2 | |||
3 | *$read(filename, [ntswrp], [matchtext], [N])* |
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4 | |||
5 | Returns a single line of text from a file. |
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6 | |||
7 | _See also [[$readn]]._ |
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8 | |||
9 | *Parameters* |
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10 | |||
11 | 2 | Per Amundsen | table(ktable). |
12 | |*Parameter*|*Description*| |
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13 | | filename | Filename to read. | |
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14 | | [ntswrp] | (optional) | |
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15 | | [matchtext] | Matchtext to search. (optional) | |
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16 | | [N] | The Nth line. | |
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17 | 1 | Per Amundsen | |
18 | 2 | Per Amundsen | *Options* |
19 | |||
20 | table(ktable). |
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21 | |*Option*|*Description*| |
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22 | | n | Don't evaluate any identifiers in the line. | |
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23 | | t | Treat the first line as a plain text, even if it's a number. | |
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24 | | s | Search for matchtext. | |
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25 | | w | Search for matchtext as a wildmatch. | |
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26 | | r | Search for matchtext as a regular expression. | |
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27 | | p | Treat command <notextile>|</notextile> separators as such instead of as plain text. | |
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28 | 1 | Per Amundsen | |
29 | *Example* |
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30 | |||
31 | <pre> |
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32 | ; Prints a random line from the file 'file.txt'. |
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33 | //echo $read(file.txt) |
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34 | |||
35 | ; Prints line '10' from the file 'file,txt. |
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36 | //echo $read(file.txt, 10) |
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37 | |||
38 | ; Searches file 'file,txt for a line beginning with the text 'Hello World' and prints the text following the match value. |
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39 | //echo $read(file.txt, s, Hello World) |
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40 | |||
41 | ; Searches file 'file.txt' for a line matching the wildmatch '*Hello World*' and prints it. |
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42 | //echo $read(file.txt, w, *Hello World*) |
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43 | </pre> |