yy_get_next_buffer - try to read in a new buffer * * Returns a code representing an action: * EOB_ACT_LAST_MATCH - * EOB_ACT_CONTINUE_SCAN - continue scanning from current position * EOB_ACT_END_OF_FILE - end of file */
| 1154 | * EOB_ACT_END_OF_FILE - end of file |
| 1155 | */ |
| 1156 | static int yy_get_next_buffer (void) |
| 1157 | { |
| 1158 | char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; |
| 1159 | char *source = (yytext_ptr); |
| 1160 | int number_to_move, i; |
| 1161 | int ret_val; |
| 1162 | |
| 1163 | if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) |
| 1164 | YY_FATAL_ERROR( |
| 1165 | "fatal flex scanner internal error--end of buffer missed" ); |
| 1166 | |
| 1167 | if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) |
| 1168 | { /* Don't try to fill the buffer, so this is an EOF. */ |
| 1169 | if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) |
| 1170 | { |
| 1171 | /* We matched a single character, the EOB, so |
| 1172 | * treat this as a final EOF. |
| 1173 | */ |
| 1174 | return EOB_ACT_END_OF_FILE; |
| 1175 | } |
| 1176 | |
| 1177 | else |
| 1178 | { |
| 1179 | /* We matched some text prior to the EOB, first |
| 1180 | * process it. |
| 1181 | */ |
| 1182 | return EOB_ACT_LAST_MATCH; |
| 1183 | } |
| 1184 | } |
| 1185 | |
| 1186 | /* Try to read more data. */ |
| 1187 | |
| 1188 | /* First move last chars to start of buffer. */ |
| 1189 | number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1); |
| 1190 | |
| 1191 | for ( i = 0; i < number_to_move; ++i ) |
| 1192 | *(dest++) = *(source++); |
| 1193 | |
| 1194 | if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) |
| 1195 | /* don't do the read, it's not guaranteed to return an EOF, |
| 1196 | * just force an EOF |
| 1197 | */ |
| 1198 | YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; |
| 1199 | |
| 1200 | else |
| 1201 | { |
| 1202 | int num_to_read = |
| 1203 | YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; |
| 1204 | |
| 1205 | while ( num_to_read <= 0 ) |
| 1206 | { /* Not enough room in the buffer - grow it. */ |
| 1207 | |
| 1208 | /* just a shorter name for the current buffer */ |
| 1209 | YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; |
| 1210 | |
| 1211 | int yy_c_buf_p_offset = |
| 1212 | (int) ((yy_c_buf_p) - b->yy_ch_buf); |
| 1213 |
no test coverage detected