Split the sqlite3_complete() API out into a separate source file so that
in static links where it is not used it will not take up space in the resulting binary. (CVS 2594) FossilOrigin-Name: 62b87751dea56c565bcc2aca88a2edda7dfc2a57
This commit is contained in:
parent
9abc9c6aff
commit
a2b902d66d
@ -113,7 +113,7 @@ TCC += -DSQLITE_OMIT_CURSOR
|
||||
# Object files for the SQLite library.
|
||||
#
|
||||
LIBOBJ = alter.lo analyze.lo attach.lo auth.lo btree.lo build.lo \
|
||||
callback.lo date.lo \
|
||||
callback.lo complete.lo date.lo \
|
||||
delete.lo expr.lo func.lo hash.lo insert.lo \
|
||||
main.lo opcodes.lo os_unix.lo os_win.lo \
|
||||
pager.lo parse.lo pragma.lo prepare.lo printf.lo random.lo \
|
||||
@ -133,6 +133,7 @@ SRC = \
|
||||
$(TOP)/src/btree.h \
|
||||
$(TOP)/src/build.c \
|
||||
$(TOP)/src/callback.c \
|
||||
$(TOP)/src/complete.c \
|
||||
$(TOP)/src/date.c \
|
||||
$(TOP)/src/delete.c \
|
||||
$(TOP)/src/expr.c \
|
||||
@ -191,7 +192,8 @@ TESTSRC = \
|
||||
$(TOP)/src/utf.c \
|
||||
$(TOP)/src/util.c \
|
||||
$(TOP)/src/vdbe.c \
|
||||
$(TOP)/src/md5.c
|
||||
$(TOP)/src/md5.c \
|
||||
$(TOP)/src/where.c
|
||||
|
||||
# In LIBOBJ but not TESTSRC
|
||||
COMMONOBJ = $(foreach obj,$(LIBOBJ),\
|
||||
@ -291,6 +293,9 @@ build.lo: $(TOP)/src/build.c $(HDR)
|
||||
callback.lo: $(TOP)/src/callback.c $(HDR)
|
||||
$(LTCOMPILE) -c $(TOP)/src/callback.c
|
||||
|
||||
complete.lo: $(TOP)/src/complete.c $(HDR)
|
||||
$(LTCOMPILE) -c $(TOP)/src/complete.c
|
||||
|
||||
date.lo: $(TOP)/src/date.c $(HDR)
|
||||
$(LTCOMPILE) -c $(TOP)/src/date.c
|
||||
|
||||
|
6
main.mk
6
main.mk
@ -55,7 +55,7 @@ TCCX = $(TCC) $(OPTS) $(THREADSAFE) $(USLEEP) -I. -I$(TOP)/src
|
||||
# Object files for the SQLite library.
|
||||
#
|
||||
LIBOBJ+= alter.o analyze.o attach.o auth.o btree.o build.o \
|
||||
callback.o date.o delete.o \
|
||||
callback.o complete.o date.o delete.o \
|
||||
expr.o func.o hash.o insert.o \
|
||||
main.o opcodes.o os_unix.o os_win.o \
|
||||
pager.o parse.o pragma.o prepare.o printf.o random.o \
|
||||
@ -75,6 +75,7 @@ SRC = \
|
||||
$(TOP)/src/btree.h \
|
||||
$(TOP)/src/build.c \
|
||||
$(TOP)/src/callback.c \
|
||||
$(TOP)/src/complete.c \
|
||||
$(TOP)/src/date.c \
|
||||
$(TOP)/src/delete.c \
|
||||
$(TOP)/src/expr.c \
|
||||
@ -222,6 +223,9 @@ build.o: $(TOP)/src/build.c $(HDR)
|
||||
callback.o: $(TOP)/src/callback.c $(HDR)
|
||||
$(TCCX) -c $(TOP)/src/callback.c
|
||||
|
||||
complete.o: $(TOP)/src/complete.c $(HDR)
|
||||
$(TCCX) -c $(TOP)/src/complete.c
|
||||
|
||||
date.o: $(TOP)/src/date.c $(HDR)
|
||||
$(TCCX) -c $(TOP)/src/date.c
|
||||
|
||||
|
17
manifest
17
manifest
@ -1,6 +1,6 @@
|
||||
C Declare\slocal-use\sfunctions\sas\sstatic.\s\sTicket\s#1363.\s(CVS\s2593)
|
||||
D 2005-08-14T01:34:20
|
||||
F Makefile.in 22ea9c0fe748f591712d8fe3c6d972c6c173a165
|
||||
C Split\sthe\ssqlite3_complete()\sAPI\sout\sinto\sa\sseparate\ssource\sfile\sso\sthat\nin\sstatic\slinks\swhere\sit\sis\snot\sused\sit\swill\snot\stake\sup\sspace\sin\sthe\nresulting\sbinary.\s(CVS\s2594)
|
||||
D 2005-08-14T17:53:21
|
||||
F Makefile.in b109ddb46a5550d0732dcd6caca01c123f6d5cdd
|
||||
F Makefile.linux-gcc 06be33b2a9ad4f005a5f42b22c4a19dab3cbb5c7
|
||||
F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
|
||||
F VERSION 44fad0bf0996660a11bf8187361de03941d9b7b0
|
||||
@ -17,7 +17,7 @@ F doc/lemon.html f0f682f50210928c07e562621c3b7e8ab912a538
|
||||
F doc/report1.txt a031aaf37b185e4fa540223cb516d3bccec7eeac
|
||||
F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895
|
||||
F ltmain.sh f6b283068efa69f06eb8aa1fe4bddfdbdeb35826
|
||||
F main.mk c6712c0b26305f2da026d722caf3d9f8b6e187ea
|
||||
F main.mk bf8b4a9dbd9233f2371d0322e33e42bde87212b2
|
||||
F mkdll.sh 5ec23622515d5bf8969404e80cfb5e220ddf0512
|
||||
F mkopcodec.awk bd46ad001c98dfbab07b1713cb8e692fa0e5415d
|
||||
F mkopcodeh.awk 7563ad235670e864ead95cf672be3fe081450ae0
|
||||
@ -36,6 +36,7 @@ F src/btree.c 667227e4375d8bf6abd748cf6bad7a2004bf5d87
|
||||
F src/btree.h 41a71ce027db9ddee72cb43df2316bbe3a1d92af
|
||||
F src/build.c 6481b728788829e57d2ad6f765cb2dc82ced9d8e
|
||||
F src/callback.c 9a1162c8f9dae9fad6d548339669aacb5f6cf76b
|
||||
F src/complete.c 4de937dfdd4c79a501772ab2035b26082f337a79
|
||||
F src/date.c 7444b0900a28da77e57e3337a636873cff0ae940
|
||||
F src/delete.c be1fc25c9e109cd8cbab42a43ee696263da7c04b
|
||||
F src/experimental.c 50c1e3b34f752f4ac10c36f287db095c2b61766d
|
||||
@ -73,7 +74,7 @@ F src/test2.c 792f203be69fea88668fa221321194f0a28dfdfa
|
||||
F src/test3.c f4e6a16a602091696619a1171bda25c0e3df49f7
|
||||
F src/test4.c a8fd681e139e1c61f22a77d07fc3a99cb28fff3f
|
||||
F src/test5.c 64f08b2a50ef371a1bd68ff206829e7b1b9997f5
|
||||
F src/tokenize.c 0ea99e6d02287d6c46788fd5f97533636667244f
|
||||
F src/tokenize.c aa02aa217d8afa3effafca112cd7f18b4c2c3b71
|
||||
F src/trigger.c f51dec15921629591cb98bf2e350018e268b109a
|
||||
F src/update.c a9d2c5f504212d62da1b094476f1389c0e02f83f
|
||||
F src/utf.c bda5eb85039ef16f2d17004c1e18c96e1ab0a80c
|
||||
@ -292,7 +293,7 @@ F www/tclsqlite.tcl 3df553505b6efcad08f91e9b975deb2e6c9bb955
|
||||
F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
|
||||
F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
|
||||
F www/whentouse.tcl 528299b8316726dbcc5548e9aa0648c8b1bd055b
|
||||
P 72ee21c05e618b6f46f5460f8c85779c72fe32d7
|
||||
R 4337f23131442ef9ab5ac25e2814be9d
|
||||
P 94efd7908880c7d99c08ebc9a3437cfbefc42f7e
|
||||
R aba4d0123b815fe8fae7c07e56c29e43
|
||||
U drh
|
||||
Z 5158574a3d9ddf275c7c4209c09a5c0c
|
||||
Z a0b138cf78bbb402904383cc3a8c7ee1
|
||||
|
@ -1 +1 @@
|
||||
94efd7908880c7d99c08ebc9a3437cfbefc42f7e
|
||||
62b87751dea56c565bcc2aca88a2edda7dfc2a57
|
263
src/complete.c
Normal file
263
src/complete.c
Normal file
@ -0,0 +1,263 @@
|
||||
/*
|
||||
** 2001 September 15
|
||||
**
|
||||
** The author disclaims copyright to this source code. In place of
|
||||
** a legal notice, here is a blessing:
|
||||
**
|
||||
** May you do good and not evil.
|
||||
** May you find forgiveness for yourself and forgive others.
|
||||
** May you share freely, never taking more than you give.
|
||||
**
|
||||
*************************************************************************
|
||||
** An tokenizer for SQL
|
||||
**
|
||||
** This file contains C code that implements the sqlite3_complete() API.
|
||||
** This code used to be part of the tokenizer.c source file. But by
|
||||
** separating it out, the code will be automatically omitted from
|
||||
** static links that do not use it.
|
||||
**
|
||||
** $Id: complete.c,v 1.1 2005/08/14 17:53:21 drh Exp $
|
||||
*/
|
||||
#include "sqliteInt.h"
|
||||
#ifndef SQLITE_OMIT_COMPLETE
|
||||
|
||||
/*
|
||||
** This is defined in tokenize.c. We just have to import the definition.
|
||||
*/
|
||||
extern const char sqlite3IsIdChar[];
|
||||
#define IdChar(C) (((c=C)&0x80)!=0 || (c>0x1f && sqlite3IsIdChar[c-0x20]))
|
||||
|
||||
|
||||
/*
|
||||
** Token types used by the sqlite3_complete() routine. See the header
|
||||
** comments on that procedure for additional information.
|
||||
*/
|
||||
#define tkSEMI 0
|
||||
#define tkWS 1
|
||||
#define tkOTHER 2
|
||||
#define tkEXPLAIN 3
|
||||
#define tkCREATE 4
|
||||
#define tkTEMP 5
|
||||
#define tkTRIGGER 6
|
||||
#define tkEND 7
|
||||
|
||||
/*
|
||||
** Return TRUE if the given SQL string ends in a semicolon.
|
||||
**
|
||||
** Special handling is require for CREATE TRIGGER statements.
|
||||
** Whenever the CREATE TRIGGER keywords are seen, the statement
|
||||
** must end with ";END;".
|
||||
**
|
||||
** This implementation uses a state machine with 7 states:
|
||||
**
|
||||
** (0) START At the beginning or end of an SQL statement. This routine
|
||||
** returns 1 if it ends in the START state and 0 if it ends
|
||||
** in any other state.
|
||||
**
|
||||
** (1) NORMAL We are in the middle of statement which ends with a single
|
||||
** semicolon.
|
||||
**
|
||||
** (2) EXPLAIN The keyword EXPLAIN has been seen at the beginning of
|
||||
** a statement.
|
||||
**
|
||||
** (3) CREATE The keyword CREATE has been seen at the beginning of a
|
||||
** statement, possibly preceeded by EXPLAIN and/or followed by
|
||||
** TEMP or TEMPORARY
|
||||
**
|
||||
** (4) TRIGGER We are in the middle of a trigger definition that must be
|
||||
** ended by a semicolon, the keyword END, and another semicolon.
|
||||
**
|
||||
** (5) SEMI We've seen the first semicolon in the ";END;" that occurs at
|
||||
** the end of a trigger definition.
|
||||
**
|
||||
** (6) END We've seen the ";END" of the ";END;" that occurs at the end
|
||||
** of a trigger difinition.
|
||||
**
|
||||
** Transitions between states above are determined by tokens extracted
|
||||
** from the input. The following tokens are significant:
|
||||
**
|
||||
** (0) tkSEMI A semicolon.
|
||||
** (1) tkWS Whitespace
|
||||
** (2) tkOTHER Any other SQL token.
|
||||
** (3) tkEXPLAIN The "explain" keyword.
|
||||
** (4) tkCREATE The "create" keyword.
|
||||
** (5) tkTEMP The "temp" or "temporary" keyword.
|
||||
** (6) tkTRIGGER The "trigger" keyword.
|
||||
** (7) tkEND The "end" keyword.
|
||||
**
|
||||
** Whitespace never causes a state transition and is always ignored.
|
||||
**
|
||||
** If we compile with SQLITE_OMIT_TRIGGER, all of the computation needed
|
||||
** to recognize the end of a trigger can be omitted. All we have to do
|
||||
** is look for a semicolon that is not part of an string or comment.
|
||||
*/
|
||||
int sqlite3_complete(const char *zSql){
|
||||
u8 state = 0; /* Current state, using numbers defined in header comment */
|
||||
u8 token; /* Value of the next token */
|
||||
|
||||
#ifndef SQLITE_OMIT_TRIGGER
|
||||
/* A complex statement machine used to detect the end of a CREATE TRIGGER
|
||||
** statement. This is the normal case.
|
||||
*/
|
||||
static const u8 trans[7][8] = {
|
||||
/* Token: */
|
||||
/* State: ** SEMI WS OTHER EXPLAIN CREATE TEMP TRIGGER END */
|
||||
/* 0 START: */ { 0, 0, 1, 2, 3, 1, 1, 1, },
|
||||
/* 1 NORMAL: */ { 0, 1, 1, 1, 1, 1, 1, 1, },
|
||||
/* 2 EXPLAIN: */ { 0, 2, 1, 1, 3, 1, 1, 1, },
|
||||
/* 3 CREATE: */ { 0, 3, 1, 1, 1, 3, 4, 1, },
|
||||
/* 4 TRIGGER: */ { 5, 4, 4, 4, 4, 4, 4, 4, },
|
||||
/* 5 SEMI: */ { 5, 5, 4, 4, 4, 4, 4, 6, },
|
||||
/* 6 END: */ { 0, 6, 4, 4, 4, 4, 4, 4, },
|
||||
};
|
||||
#else
|
||||
/* If triggers are not suppored by this compile then the statement machine
|
||||
** used to detect the end of a statement is much simplier
|
||||
*/
|
||||
static const u8 trans[2][3] = {
|
||||
/* Token: */
|
||||
/* State: ** SEMI WS OTHER */
|
||||
/* 0 START: */ { 0, 0, 1, },
|
||||
/* 1 NORMAL: */ { 0, 1, 1, },
|
||||
};
|
||||
#endif /* SQLITE_OMIT_TRIGGER */
|
||||
|
||||
while( *zSql ){
|
||||
switch( *zSql ){
|
||||
case ';': { /* A semicolon */
|
||||
token = tkSEMI;
|
||||
break;
|
||||
}
|
||||
case ' ':
|
||||
case '\r':
|
||||
case '\t':
|
||||
case '\n':
|
||||
case '\f': { /* White space is ignored */
|
||||
token = tkWS;
|
||||
break;
|
||||
}
|
||||
case '/': { /* C-style comments */
|
||||
if( zSql[1]!='*' ){
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
zSql += 2;
|
||||
while( zSql[0] && (zSql[0]!='*' || zSql[1]!='/') ){ zSql++; }
|
||||
if( zSql[0]==0 ) return 0;
|
||||
zSql++;
|
||||
token = tkWS;
|
||||
break;
|
||||
}
|
||||
case '-': { /* SQL-style comments from "--" to end of line */
|
||||
if( zSql[1]!='-' ){
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
while( *zSql && *zSql!='\n' ){ zSql++; }
|
||||
if( *zSql==0 ) return state==0;
|
||||
token = tkWS;
|
||||
break;
|
||||
}
|
||||
case '[': { /* Microsoft-style identifiers in [...] */
|
||||
zSql++;
|
||||
while( *zSql && *zSql!=']' ){ zSql++; }
|
||||
if( *zSql==0 ) return 0;
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
case '`': /* Grave-accent quoted symbols used by MySQL */
|
||||
case '"': /* single- and double-quoted strings */
|
||||
case '\'': {
|
||||
int c = *zSql;
|
||||
zSql++;
|
||||
while( *zSql && *zSql!=c ){ zSql++; }
|
||||
if( *zSql==0 ) return 0;
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
int c;
|
||||
if( IdChar((u8)*zSql) ){
|
||||
/* Keywords and unquoted identifiers */
|
||||
int nId;
|
||||
for(nId=1; IdChar(zSql[nId]); nId++){}
|
||||
#ifdef SQLITE_OMIT_TRIGGER
|
||||
token = tkOTHER;
|
||||
#else
|
||||
switch( *zSql ){
|
||||
case 'c': case 'C': {
|
||||
if( nId==6 && sqlite3StrNICmp(zSql, "create", 6)==0 ){
|
||||
token = tkCREATE;
|
||||
}else{
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 't': case 'T': {
|
||||
if( nId==7 && sqlite3StrNICmp(zSql, "trigger", 7)==0 ){
|
||||
token = tkTRIGGER;
|
||||
}else if( nId==4 && sqlite3StrNICmp(zSql, "temp", 4)==0 ){
|
||||
token = tkTEMP;
|
||||
}else if( nId==9 && sqlite3StrNICmp(zSql, "temporary", 9)==0 ){
|
||||
token = tkTEMP;
|
||||
}else{
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 'e': case 'E': {
|
||||
if( nId==3 && sqlite3StrNICmp(zSql, "end", 3)==0 ){
|
||||
token = tkEND;
|
||||
}else
|
||||
#ifndef SQLITE_OMIT_EXPLAIN
|
||||
if( nId==7 && sqlite3StrNICmp(zSql, "explain", 7)==0 ){
|
||||
token = tkEXPLAIN;
|
||||
}else
|
||||
#endif
|
||||
{
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
}
|
||||
#endif /* SQLITE_OMIT_TRIGGER */
|
||||
zSql += nId-1;
|
||||
}else{
|
||||
/* Operators and special symbols */
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
state = trans[state][token];
|
||||
zSql++;
|
||||
}
|
||||
return state==0;
|
||||
}
|
||||
|
||||
#ifndef SQLITE_OMIT_UTF16
|
||||
/*
|
||||
** This routine is the same as the sqlite3_complete() routine described
|
||||
** above, except that the parameter is required to be UTF-16 encoded, not
|
||||
** UTF-8.
|
||||
*/
|
||||
int sqlite3_complete16(const void *zSql){
|
||||
sqlite3_value *pVal;
|
||||
char const *zSql8;
|
||||
int rc = 0;
|
||||
|
||||
pVal = sqlite3ValueNew();
|
||||
sqlite3ValueSetStr(pVal, -1, zSql, SQLITE_UTF16NATIVE, SQLITE_STATIC);
|
||||
zSql8 = sqlite3ValueText(pVal, SQLITE_UTF8);
|
||||
if( zSql8 ){
|
||||
rc = sqlite3_complete(zSql8);
|
||||
}
|
||||
sqlite3ValueFree(pVal);
|
||||
return rc;
|
||||
}
|
||||
#endif /* SQLITE_OMIT_UTF16 */
|
||||
#endif /* SQLITE_OMIT_COMPLETE */
|
249
src/tokenize.c
249
src/tokenize.c
@ -15,7 +15,7 @@
|
||||
** individual tokens and sends those tokens one-by-one over to the
|
||||
** parser for analysis.
|
||||
**
|
||||
** $Id: tokenize.c,v 1.105 2005/08/13 18:15:43 drh Exp $
|
||||
** $Id: tokenize.c,v 1.106 2005/08/14 17:53:21 drh Exp $
|
||||
*/
|
||||
#include "sqliteInt.h"
|
||||
#include "os.h"
|
||||
@ -38,9 +38,9 @@
|
||||
|
||||
/*
|
||||
** If X is a character that can be used in an identifier and
|
||||
** X&0x80==0 then isIdChar[X] will be 1. If X&0x80==0x80 then
|
||||
** X&0x80==0 then sqlite3IsIdChar[X] will be 1. If X&0x80==0x80 then
|
||||
** X is always an identifier character. (Hence all UTF-8
|
||||
** characters can be part of an identifier). isIdChar[X] will
|
||||
** characters can be part of an identifier). sqlite3IsIdChar[X] will
|
||||
** be 0 for every character in the lower 128 ASCII characters
|
||||
** that cannot be used as part of an identifier.
|
||||
**
|
||||
@ -55,7 +55,7 @@
|
||||
** SQLite will allow '$' in identifiers for compatibility.
|
||||
** But the feature is undocumented.
|
||||
*/
|
||||
static const char isIdChar[] = {
|
||||
const char sqlite3IsIdChar[] = {
|
||||
/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF */
|
||||
0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 2x */
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 3x */
|
||||
@ -65,7 +65,7 @@ static const char isIdChar[] = {
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, /* 7x */
|
||||
};
|
||||
|
||||
#define IdChar(C) (((c=C)&0x80)!=0 || (c>0x1f && isIdChar[c-0x20]))
|
||||
#define IdChar(C) (((c=C)&0x80)!=0 || (c>0x1f && sqlite3IsIdChar[c-0x20]))
|
||||
|
||||
/*
|
||||
** Return the length of the token that begins at z[0].
|
||||
@ -424,242 +424,3 @@ abort_parse:
|
||||
}
|
||||
return nErr;
|
||||
}
|
||||
|
||||
/* The sqlite3_complete() API may be omitted (to save code space) by
|
||||
** defining the following symbol.
|
||||
*/
|
||||
#ifndef SQLITE_OMIT_COMPLETE
|
||||
|
||||
/*
|
||||
** Token types used by the sqlite3_complete() routine. See the header
|
||||
** comments on that procedure for additional information.
|
||||
*/
|
||||
#define tkSEMI 0
|
||||
#define tkWS 1
|
||||
#define tkOTHER 2
|
||||
#define tkEXPLAIN 3
|
||||
#define tkCREATE 4
|
||||
#define tkTEMP 5
|
||||
#define tkTRIGGER 6
|
||||
#define tkEND 7
|
||||
|
||||
/*
|
||||
** Return TRUE if the given SQL string ends in a semicolon.
|
||||
**
|
||||
** Special handling is require for CREATE TRIGGER statements.
|
||||
** Whenever the CREATE TRIGGER keywords are seen, the statement
|
||||
** must end with ";END;".
|
||||
**
|
||||
** This implementation uses a state machine with 7 states:
|
||||
**
|
||||
** (0) START At the beginning or end of an SQL statement. This routine
|
||||
** returns 1 if it ends in the START state and 0 if it ends
|
||||
** in any other state.
|
||||
**
|
||||
** (1) NORMAL We are in the middle of statement which ends with a single
|
||||
** semicolon.
|
||||
**
|
||||
** (2) EXPLAIN The keyword EXPLAIN has been seen at the beginning of
|
||||
** a statement.
|
||||
**
|
||||
** (3) CREATE The keyword CREATE has been seen at the beginning of a
|
||||
** statement, possibly preceeded by EXPLAIN and/or followed by
|
||||
** TEMP or TEMPORARY
|
||||
**
|
||||
** (4) TRIGGER We are in the middle of a trigger definition that must be
|
||||
** ended by a semicolon, the keyword END, and another semicolon.
|
||||
**
|
||||
** (5) SEMI We've seen the first semicolon in the ";END;" that occurs at
|
||||
** the end of a trigger definition.
|
||||
**
|
||||
** (6) END We've seen the ";END" of the ";END;" that occurs at the end
|
||||
** of a trigger difinition.
|
||||
**
|
||||
** Transitions between states above are determined by tokens extracted
|
||||
** from the input. The following tokens are significant:
|
||||
**
|
||||
** (0) tkSEMI A semicolon.
|
||||
** (1) tkWS Whitespace
|
||||
** (2) tkOTHER Any other SQL token.
|
||||
** (3) tkEXPLAIN The "explain" keyword.
|
||||
** (4) tkCREATE The "create" keyword.
|
||||
** (5) tkTEMP The "temp" or "temporary" keyword.
|
||||
** (6) tkTRIGGER The "trigger" keyword.
|
||||
** (7) tkEND The "end" keyword.
|
||||
**
|
||||
** Whitespace never causes a state transition and is always ignored.
|
||||
**
|
||||
** If we compile with SQLITE_OMIT_TRIGGER, all of the computation needed
|
||||
** to recognize the end of a trigger can be omitted. All we have to do
|
||||
** is look for a semicolon that is not part of an string or comment.
|
||||
*/
|
||||
int sqlite3_complete(const char *zSql){
|
||||
u8 state = 0; /* Current state, using numbers defined in header comment */
|
||||
u8 token; /* Value of the next token */
|
||||
|
||||
#ifndef SQLITE_OMIT_TRIGGER
|
||||
/* A complex statement machine used to detect the end of a CREATE TRIGGER
|
||||
** statement. This is the normal case.
|
||||
*/
|
||||
static const u8 trans[7][8] = {
|
||||
/* Token: */
|
||||
/* State: ** SEMI WS OTHER EXPLAIN CREATE TEMP TRIGGER END */
|
||||
/* 0 START: */ { 0, 0, 1, 2, 3, 1, 1, 1, },
|
||||
/* 1 NORMAL: */ { 0, 1, 1, 1, 1, 1, 1, 1, },
|
||||
/* 2 EXPLAIN: */ { 0, 2, 1, 1, 3, 1, 1, 1, },
|
||||
/* 3 CREATE: */ { 0, 3, 1, 1, 1, 3, 4, 1, },
|
||||
/* 4 TRIGGER: */ { 5, 4, 4, 4, 4, 4, 4, 4, },
|
||||
/* 5 SEMI: */ { 5, 5, 4, 4, 4, 4, 4, 6, },
|
||||
/* 6 END: */ { 0, 6, 4, 4, 4, 4, 4, 4, },
|
||||
};
|
||||
#else
|
||||
/* If triggers are not suppored by this compile then the statement machine
|
||||
** used to detect the end of a statement is much simplier
|
||||
*/
|
||||
static const u8 trans[2][3] = {
|
||||
/* Token: */
|
||||
/* State: ** SEMI WS OTHER */
|
||||
/* 0 START: */ { 0, 0, 1, },
|
||||
/* 1 NORMAL: */ { 0, 1, 1, },
|
||||
};
|
||||
#endif /* SQLITE_OMIT_TRIGGER */
|
||||
|
||||
while( *zSql ){
|
||||
switch( *zSql ){
|
||||
case ';': { /* A semicolon */
|
||||
token = tkSEMI;
|
||||
break;
|
||||
}
|
||||
case ' ':
|
||||
case '\r':
|
||||
case '\t':
|
||||
case '\n':
|
||||
case '\f': { /* White space is ignored */
|
||||
token = tkWS;
|
||||
break;
|
||||
}
|
||||
case '/': { /* C-style comments */
|
||||
if( zSql[1]!='*' ){
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
zSql += 2;
|
||||
while( zSql[0] && (zSql[0]!='*' || zSql[1]!='/') ){ zSql++; }
|
||||
if( zSql[0]==0 ) return 0;
|
||||
zSql++;
|
||||
token = tkWS;
|
||||
break;
|
||||
}
|
||||
case '-': { /* SQL-style comments from "--" to end of line */
|
||||
if( zSql[1]!='-' ){
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
while( *zSql && *zSql!='\n' ){ zSql++; }
|
||||
if( *zSql==0 ) return state==0;
|
||||
token = tkWS;
|
||||
break;
|
||||
}
|
||||
case '[': { /* Microsoft-style identifiers in [...] */
|
||||
zSql++;
|
||||
while( *zSql && *zSql!=']' ){ zSql++; }
|
||||
if( *zSql==0 ) return 0;
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
case '`': /* Grave-accent quoted symbols used by MySQL */
|
||||
case '"': /* single- and double-quoted strings */
|
||||
case '\'': {
|
||||
int c = *zSql;
|
||||
zSql++;
|
||||
while( *zSql && *zSql!=c ){ zSql++; }
|
||||
if( *zSql==0 ) return 0;
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
int c;
|
||||
if( IdChar((u8)*zSql) ){
|
||||
/* Keywords and unquoted identifiers */
|
||||
int nId;
|
||||
for(nId=1; IdChar(zSql[nId]); nId++){}
|
||||
#ifdef SQLITE_OMIT_TRIGGER
|
||||
token = tkOTHER;
|
||||
#else
|
||||
switch( *zSql ){
|
||||
case 'c': case 'C': {
|
||||
if( nId==6 && sqlite3StrNICmp(zSql, "create", 6)==0 ){
|
||||
token = tkCREATE;
|
||||
}else{
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 't': case 'T': {
|
||||
if( nId==7 && sqlite3StrNICmp(zSql, "trigger", 7)==0 ){
|
||||
token = tkTRIGGER;
|
||||
}else if( nId==4 && sqlite3StrNICmp(zSql, "temp", 4)==0 ){
|
||||
token = tkTEMP;
|
||||
}else if( nId==9 && sqlite3StrNICmp(zSql, "temporary", 9)==0 ){
|
||||
token = tkTEMP;
|
||||
}else{
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 'e': case 'E': {
|
||||
if( nId==3 && sqlite3StrNICmp(zSql, "end", 3)==0 ){
|
||||
token = tkEND;
|
||||
}else
|
||||
#ifndef SQLITE_OMIT_EXPLAIN
|
||||
if( nId==7 && sqlite3StrNICmp(zSql, "explain", 7)==0 ){
|
||||
token = tkEXPLAIN;
|
||||
}else
|
||||
#endif
|
||||
{
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
token = tkOTHER;
|
||||
break;
|
||||
}
|
||||
}
|
||||
#endif /* SQLITE_OMIT_TRIGGER */
|
||||
zSql += nId-1;
|
||||
}else{
|
||||
/* Operators and special symbols */
|
||||
token = tkOTHER;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
state = trans[state][token];
|
||||
zSql++;
|
||||
}
|
||||
return state==0;
|
||||
}
|
||||
|
||||
#ifndef SQLITE_OMIT_UTF16
|
||||
/*
|
||||
** This routine is the same as the sqlite3_complete() routine described
|
||||
** above, except that the parameter is required to be UTF-16 encoded, not
|
||||
** UTF-8.
|
||||
*/
|
||||
int sqlite3_complete16(const void *zSql){
|
||||
sqlite3_value *pVal;
|
||||
char const *zSql8;
|
||||
int rc = 0;
|
||||
|
||||
pVal = sqlite3ValueNew();
|
||||
sqlite3ValueSetStr(pVal, -1, zSql, SQLITE_UTF16NATIVE, SQLITE_STATIC);
|
||||
zSql8 = sqlite3ValueText(pVal, SQLITE_UTF8);
|
||||
if( zSql8 ){
|
||||
rc = sqlite3_complete(zSql8);
|
||||
}
|
||||
sqlite3ValueFree(pVal);
|
||||
return rc;
|
||||
}
|
||||
#endif /* SQLITE_OMIT_UTF16 */
|
||||
#endif /* SQLITE_OMIT_COMPLETE */
|
||||
|
Loading…
Reference in New Issue
Block a user