Lines Matching refs:lr
61 struct lafe_line_reader *lr;
63 lr = calloc(1, sizeof(*lr));
64 if (lr == NULL)
67 lr->nullSeparator = nullSeparator;
68 lr->pathname = strdup(pathname);
71 lr->f = stdin;
73 lr->f = fopen(pathname, "r");
74 if (lr->f == NULL)
76 lr->buff_length = 8192;
77 lr->line_start = lr->line_end = lr->buff_end = lr->buff = NULL;
79 return (lr);
83 lafe_line_reader_find_eol(struct lafe_line_reader *lr)
86 lr->line_end += strcspn(lr->line_end,
87 lr->nullSeparator ? "" : "\x0d\x0a");
88 *lr->line_end = '\0'; /* Noop if line_end == buff_end */
92 lafe_line_reader_next(struct lafe_line_reader *lr)
99 while (lr->line_end < lr->buff_end) {
100 line_start = lr->line_start;
101 lr->line_start = ++lr->line_end;
102 lafe_line_reader_find_eol(lr);
104 if (lr->nullSeparator || line_start[0] != '\0')
109 if (lr->f == NULL) {
110 if (lr->line_start == lr->buff_end)
112 line_start = lr->line_start;
113 lr->line_start = lr->buff_end;
118 if (lr->line_start > lr->buff) {
120 memmove(lr->buff, lr->line_start,
121 lr->buff_end - lr->line_start);
122 lr->buff_end -= lr->line_start - lr->buff;
123 lr->line_end -= lr->line_start - lr->buff;
124 lr->line_start = lr->buff;
127 new_buff_size = lr->buff_length * 2;
128 if (new_buff_size <= lr->buff_length)
130 "Line too long in %s", lr->pathname);
131 lr->buff_length = new_buff_size;
136 p = realloc(lr->buff, new_buff_size + 1);
139 "Line too long in %s", lr->pathname);
140 lr->buff_end = p + (lr->buff_end - lr->buff);
141 lr->line_end = p + (lr->line_end - lr->buff);
142 lr->line_start = lr->buff = p;
146 bytes_wanted = lr->buff + lr->buff_length - lr->buff_end;
147 bytes_read = fread(lr->buff_end, 1, bytes_wanted, lr->f);
148 lr->buff_end += bytes_read;
149 *lr->buff_end = '\0'; /* Always terminate buffer */
150 lafe_line_reader_find_eol(lr);
152 if (ferror(lr->f))
153 lafe_errc(1, errno, "Can't read %s", lr->pathname);
154 if (feof(lr->f)) {
155 if (lr->f != stdin)
156 fclose(lr->f);
157 lr->f = NULL;
163 lafe_line_reader_free(struct lafe_line_reader *lr)
165 free(lr->buff);
166 free(lr->pathname);
167 free(lr);