awk: Make -F '' and -v FS="" behave the same
IEEE Std 1003.1-2008 mandates that -F str be treated the same as -v FS=str. For a null string, this was not the case. Since awk(1) documents that a null string for FS has a specific behavior, make -F '' behave consistently with -v FS="". PR: upstream issue: https://github.com/onetrueawk/awk/issues/127 Sponsored by: Netflix
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main.c
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main.c
@ -91,9 +91,7 @@ setfs(char *p)
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/* wart: t=>\t */
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if (p[0] == 't' && p[1] == '\0')
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return "\t";
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else if (p[0] != '\0')
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return p;
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return NULL;
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return p;
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}
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static char *
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@ -169,8 +167,6 @@ int main(int argc, char *argv[])
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break;
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case 'F': /* set field separator */
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fs = setfs(getarg(&argc, &argv, "no field separator"));
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if (fs == NULL)
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WARNING("field separator FS is empty");
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break;
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case 'v': /* -v a=1 to be done NOW. one -v for each */
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vn = getarg(&argc, &argv, "no variable name");
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