/* * SQL language mode for QEmacs. * * Copyright (c) 2000-2022 Charlie Gordon. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "qe.h" /*---------------- SQL script coloring ----------------*/ enum { IN_SQL_COMMENT = 1, }; enum { SQL_STYLE_TEXT = QE_STYLE_DEFAULT, SQL_STYLE_COMMENT = QE_STYLE_COMMENT, SQL_STYLE_STRING = QE_STYLE_STRING, SQL_STYLE_KEYWORD = QE_STYLE_KEYWORD, SQL_STYLE_TYPE = QE_STYLE_TYPE, SQL_STYLE_IDENTIFIER = QE_STYLE_DEFAULT, SQL_STYLE_PREPROCESS = QE_STYLE_PREPROCESS, }; static char const sql_keywords[] = { "abs|acos|add|aes_decrypt|aes_encrypt|after|all|alter|analyse|analyze|" "and|as|asc|ascii|asin|atan|atan2|auto_increment|avg|backup|begin|" "benchmark|between|bin|binlog|bit_and|bit_count|bit_length|bit_or|" "bit_xor|both|btree|by|call|case|cast|ceil|ceiling|change|character|" "character_length|char_length|check|checksum|clob|clock|coalesce|" "collate|column|columns|comment|commit|compressed|concat|concat_ws|" "concurrent|constraint|contents|controlfile|conv|convert|cos|cot|" "count|crc32|crc64|create|current_date|current_time|current_timestamp|" "current_user|data|database|databases|declare|default|degrees|delayed|" "delete|desc|describe|directory|disable|discard|div|do|drop|dump|elt|" "enable|enclosed|end|engine|enum|escaped|event|events|execute|exists|" "exp|explain|export_set|fail|false|field|fields|find_in_set|first|" "floor|for|foreign|format|found_rows|from|full|fulltext|function|" "global|go|grant|greatest|group_concat|handler|hash|having|help|hex|" "high_priority|hsieh_hash|if|ifnull|ignore|import|in|index|inet|infile|" "insert|install|instr|interval|into|is|isnull|iterate|jenkins_hash|key|" "keys|last|last_insert_id|lcase|leading|least|leave|left|length|like|" "limit|lines|ln|load|load_file|local|localtime|localtimestamp|locate|" "lock|log|log10|log2|logs|loop|lower|low_priority|lpad|ltrim|make_set|" "max|md5|md5_bin|memory|mid|min|mod|modify|no|none|not|now|null|nullif|" "oct|off|offset|on|optionally|or|ord|order|outfile|password|pi|pid|pow|" "power|prepare|primary|print|procedure|quote|radians|rand|recno|" "release|rename|repair|repeat|replace|restore|return|reverse|revoke|" "right|rollback|round|rpad|rtree|rtrim|rule|savepoint|schema|select|" "sequence|serial|server|session|set|sha|sha1|sha128_bin|sha224_bin|" "sha256_bin|sha384_bin|sha512_bin|show|sign|signed|sin|soundex|source|" "space|spatial|sql_calc_found_rows|sqrt|start|starting|stats|std|" "stddev|stddev_pop|stddev_samp|strcmp|string|structure|substr|" "substring|substring_index|sum|table|tables|tan|temporary|terminated|" "time|timestamp|timings|to|trailing|transaction|trigger|trim|true|" "truncate|type|ucase|unhex|uninstall|unique|unix_timestamp|unknown|" "unlock|update|upper|use|user|using|utf8|value|values|varbinary|" "variables|variance|var_pop|var_samp|verbose|version_comment|view|" "when|where|while|xml|year|yes|" "pragma|" "adddate|addtime|curdate|curtime|date_add|date_sub|date_format|" "datediff|day|dayname|dayofmonth|dayofweek|dayofyear|extract|" "from_days|from_unixtime|get_format|hour|last_day|makedate|maketime|" "microsecond|minute|month|monthname|period_add|period_diff|quarter|" "sec_to_time|second|str_to_date|subdate|subtime|sysdate|timediff|" "time_format|time_to_sec|to_days|utc_date|utc_time|utc_timestamp|" "week|weekday|weekofyear|yearweek|second_microsecond|" "minute_microsecond|minute_second|hour_microsecond|hour_second|" "hour_minute|day_microsecond|day_second|day_minute|day_hour|" "year_month|" }; static char const sql_types[] = { "bigint|binary|bit|blob|bool|char|counter|date|datetime|dec|decimal|" "double|fixed|float|int|int16|int24|int32|int48|int64|int8|integer|" "largeint|long|longblob|longtext|mediumblob|mediumint|mediumtext|" "memo|number|numeric|real|smallint|text|tinyblob|tinyint|tinytext|" "uint16|uint24|uint32|uint48|uint64|uint8|ulong|unsigned|varchar|" "varchar2|" }; static void sql_colorize_line(QEColorizeContext *cp, char32_t *str, int n, ModeDef *syn) { char kbuf[16]; int i = 0, start = i, style; char32_t c; int state = cp->colorize_state; if (state & IN_SQL_COMMENT) goto parse_c_comment; while (i < n) { start = i; c = str[i++]; switch (c) { case '/': if (str[i] == '/') goto line_comment; if (str[i] == '*') { /* normal comment */ i++; parse_c_comment: state |= IN_SQL_COMMENT; for (; i < n; i++) { if (str[i] == '*' && str[i + 1] == '/') { i += 2; state &= ~IN_SQL_COMMENT; break; } } goto comment; } break; case '-': if (str[i] == '-') goto line_comment; break; case '#': line_comment: i = n; comment: SET_COLOR(str, start, i, SQL_STYLE_COMMENT); continue; case '\'': case '\"': case '`': /* parse string const */ for (; i < n; i++) { /* FIXME: Should parse strings more accurately */ if (str[i] == '\\' && i + 1 < n) { i++; continue; } if (str[i] == c) { i++; break; } } style = SQL_STYLE_STRING; if (c == '`') style = SQL_STYLE_IDENTIFIER; SET_COLOR(str, start, i, style); continue; default: break; } /* parse identifiers and keywords */ if (qe_isalpha_(c)) { i += ustr_get_identifier_lc(kbuf, countof(kbuf), c, str, i, n); if (strfind(syn->keywords, kbuf)) { SET_COLOR(str, start, i, SQL_STYLE_KEYWORD); continue; } if (strfind(syn->types, kbuf)) { SET_COLOR(str, start, i, SQL_STYLE_TYPE); continue; } SET_COLOR(str, start, i, SQL_STYLE_IDENTIFIER); continue; } } cp->colorize_state = state; } static int sql_mode_probe(ModeDef *mode, ModeProbeData *pd) { const char *p = cs8(pd->buf); if (strstart(p, "PRAGMA foreign_keys=OFF;", NULL) || strstart(p, "-- phpMyAdmin SQL Dump", NULL)) { return 80; } if (match_extension(pd->filename, mode->extensions)) return 60; return 1; } static ModeDef sql_mode = { .name = "SQL", .extensions = "sql|Sql|mysql|sqlite|sqlplus|rdb|xdb|db", .mode_probe = sql_mode_probe, .keywords = sql_keywords, .types = sql_types, .colorize_func = sql_colorize_line, }; static int sql_init(void) { qe_register_mode(&sql_mode, MODEF_SYNTAX); return 0; } qe_module_init(sql_init);