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Make the len parameter optional in STRSUB(str, pos, len)

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An unspecified length will continue to the end of the string.
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Rangi
2021-04-19 12:00:42 -04:00
committed by Eldred Habert
parent b1e6c73197
commit dc5b7802c8
5 changed files with 67 additions and 36 deletions
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src/asm/rgbasm.5
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@@ -394,7 +394,7 @@ Most of them return a string, however some of these functions actually return an
.It Fn STRCMP str1 str2 Ta Returns -1 if Ar str1 No is alphabetically lower than Ar str2 No , zero if they match, 1 if Ar str1 No is greater than Ar str2 .
.It Fn STRIN str1 str2 Ta Returns the first position of Ar str2 No in Ar str1 No or zero if it's not present Pq first character is position 1 .
.It Fn STRRIN str1 str2 Ta Returns the last position of Ar str2 No in Ar str1 No or zero if it's not present Pq first character is position 1 .
.It Fn STRSUB str pos len Ta Returns a substring from Ar str No starting at Ar pos No (first character is position 1) and Ar len No characters long. Zero or negative Ar pos No counts from the end, as if Qo STRLEN(str) Qc were added to it.
.It Fn STRSUB str pos len Ta Returns a substring from Ar str No starting at Ar pos No (first character is position 1) and Ar len No characters long. Zero or negative Ar pos No counts from the end, as if Qo STRLEN(str) Qc were added to it. If Ar len No is not specified the substring continues to the end of Ar str .
.It Fn STRUPR str Ta Returns Ar str No with all letters in uppercase.
.It Fn STRLWR str Ta Returns Ar str No with all letters in lowercase.
.It Fn STRRPL str old new Ta Returns Ar str No with each non-overlapping occurrence of the substring Ar old No replaced with Ar new .