PATMATCH(3)

💅 PATMATCH(3) — Schily´s LIBRARY FUNCTIONS 🌸

okay so bestie, welcome to patmatch(3) — the little function that checks a string for matches, and yes, we're gonna get into all of it. no cap. 🫶

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✨ NAME ✨

patmatch() — checks string for matches 💖

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🎀 SYNOPSIS 🎀

char *patmatch(pattern, aux, string, soff, slen, alt, state)
     char *pattern;
     int *aux;
     char *string;
     int soff;
     int slen;
     int alt;
     int state[];

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🦋 DESCRIPTION 🦋

patmatch() uses the pattern matching information pattern and in addition aux and alt — which were previously set up by a call to patcompile(3) — to check string for a match. The length of the string is slen, and the starting index used for matching is soff. The string can also be terminated by a null byte. 🎀

The state array is set up and used internally by patmatch and should have at least strlen(pattern) + 1 elements. periodt. 👑

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🌈 RETURNS 🌈

Returns a NULL pointer if the string starting at the specified offset did not match the pattern. 💀

Any non-NULL return is a pointer to the first character of string after the part that matches. slay. ✨

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🔥 SEE ALSO 🔥

• patcompile(3) for information on aux and alt.
• And match(1) for a description ot the regular expressions. iykyk 👀

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🧚 NOTES 🧚

The pattern matching functions are based on ones presented by Martin Richards in "A Compact Function for Regular Expression Pattern Matching", Software-Practice and Experience vol 9, 527-534 (1979). iconic source material, fr fr. 📚💜

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xoxo, Joerg Schilling 🫶 · 2022/09/09 · Schily´s LIBRARY FUNCTIONS 💖