| 1 | .TH case 3 |
| 2 | .SH NAME |
| 3 | case \- convert ASCII uppercase bytes to lowercase |
| 4 | .SH SYNTAX |
| 5 | .B #include <case.h> |
| 6 | |
| 7 | void \fBcase_lowers\fP(\fIs\fR); |
| 8 | .br |
| 9 | void \fBcase_lowerb\fP(\fIs\fR,\fIlen\fR); |
| 10 | |
| 11 | int \fBcase_diffs\fP(\fIs\fR,\fIt\fR); |
| 12 | .br |
| 13 | int \fBcase_equals\fP(\fIs\fR,\fIt\fR); |
| 14 | .br |
| 15 | int \fBcase_starts\fP(\fIs\fR,\fIt\fR); |
| 16 | |
| 17 | int \fBcase_diffb\fP(\fIs\fR,\fIlen\fR,\fIt\fR); |
| 18 | .br |
| 19 | int \fBcase_startb\fP(\fIs\fR,\fIlen\fR,\fIt\fR); |
| 20 | |
| 21 | char *\fIs\fR; |
| 22 | .br |
| 23 | char *\fIt\fR; |
| 24 | .br |
| 25 | unsigned int \fIlen\fR; |
| 26 | .SH DESCRIPTION |
| 27 | .B case_lowers |
| 28 | converts each uppercase byte in the string |
| 29 | .I s |
| 30 | to lowercase. |
| 31 | .I s |
| 32 | must be 0-terminated. |
| 33 | |
| 34 | .B case_lowerb |
| 35 | converts each uppercase byte in the buffer |
| 36 | .IR s , |
| 37 | of length |
| 38 | .IR len , |
| 39 | to lowercase. |
| 40 | |
| 41 | .B case_diffs |
| 42 | lexicographically compares lowercase versions of the strings |
| 43 | .I s |
| 44 | and |
| 45 | .IR t . |
| 46 | It returns something positive, negative, or zero |
| 47 | when the first is larger than, smaller than, or equal to the second. |
| 48 | .I s |
| 49 | and |
| 50 | .I t |
| 51 | must be 0-terminated. |
| 52 | |
| 53 | .B case_equals |
| 54 | means |
| 55 | .BR !case_diffs . |
| 56 | |
| 57 | .B case_starts |
| 58 | returns 1 if a lowercase version of |
| 59 | .I s |
| 60 | starts with a lowercase version of |
| 61 | .IR t . |
| 62 | .I s |
| 63 | and |
| 64 | .I t |
| 65 | must be 0-terminated. |
| 66 | |
| 67 | .B case_diffb |
| 68 | lexicographically compares lowercase versions of the buffers |
| 69 | .I s |
| 70 | and |
| 71 | .IR t , |
| 72 | each of length |
| 73 | .IR len . |
| 74 | It returns something positive, negative, or zero |
| 75 | when the first is larger than, smaller than, or equal to the second. |
| 76 | |
| 77 | .B case_startb |
| 78 | returns 1 if a lowercase version of the buffer |
| 79 | .IR s , |
| 80 | of length |
| 81 | .IR len , |
| 82 | starts with a lowercase version of the string |
| 83 | .IR t . |
| 84 | .I t |
| 85 | must be 0-terminated. |
| 86 | |
| 87 | The |
| 88 | .B case |
| 89 | routines |
| 90 | are ASCII-specific. |
| 91 | They are suitable for programs that handle |
| 92 | case-independent networking protocols. |
| 93 | |
| 94 | All comparisons are performed on unsigned bytes. |
| 95 | .SH "SEE ALSO" |
| 96 | byte_diff(3), |
| 97 | byte_equal(3), |
| 98 | str_diff(3), |
| 99 | str_equal(3), |
| 100 | str_start(3) |