Imported Upstream version 2.0.3

1 files changed, 602 insertions, 0 deletions

diff --git a/tool/mkkeywordhash.c b/tool/mkkeywordhash.c
new file mode 100644
index 0000000..509aeef
--- /dev/null
+++ b/tool/mkkeywordhash.c
@@ -0,0 +1,602 @@
+/*
+** Compile and run this standalone program in order to generate code that
+** implements a function that will translate alphabetic identifiers into
+** parser token codes.
+*/
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+/*
+** A header comment placed at the beginning of generated code.
+*/
+static const char zHdr[] = 
+  "/***** This file contains automatically generated code ******\n"
+  "**\n"
+  "** The code in this file has been automatically generated by\n"
+  "**\n"
+  "**   sqlite/tool/mkkeywordhash.c\n"
+  "**\n"
+  "** The code in this file implements a function that determines whether\n"
+  "** or not a given identifier is really an SQL keyword.  The same thing\n"
+  "** might be implemented more directly using a hand-written hash table.\n"
+  "** But by using this automatically generated code, the size of the code\n"
+  "** is substantially reduced.  This is important for embedded applications\n"
+  "** on platforms with limited memory.\n"
+  "*/\n"
+;
+
+/*
+** All the keywords of the SQL language are stored in a hash
+** table composed of instances of the following structure.
+*/
+typedef struct Keyword Keyword;
+struct Keyword {
+  char *zName;         /* The keyword name */
+  char *zTokenType;    /* Token value for this keyword */
+  int mask;            /* Code this keyword if non-zero */
+  int id;              /* Unique ID for this record */
+  int hash;            /* Hash on the keyword */
+  int offset;          /* Offset to start of name string */
+  int len;             /* Length of this keyword, not counting final \000 */
+  int prefix;          /* Number of characters in prefix */
+  int longestSuffix;   /* Longest suffix that is a prefix on another word */
+  int iNext;           /* Index in aKeywordTable[] of next with same hash */
+  int substrId;        /* Id to another keyword this keyword is embedded in */
+  int substrOffset;    /* Offset into substrId for start of this keyword */
+  char zOrigName[20];  /* Original keyword name before processing */
+};
+
+/*
+** Define masks used to determine which keywords are allowed
+*/
+#ifdef SQLITE_OMIT_ALTERTABLE
+#  define ALTER      0
+#else
+#  define ALTER      0x00000001
+#endif
+#define ALWAYS       0x00000002
+#ifdef SQLITE_OMIT_ANALYZE
+#  define ANALYZE    0
+#else
+#  define ANALYZE    0x00000004
+#endif
+#ifdef SQLITE_OMIT_ATTACH
+#  define ATTACH     0
+#else
+#  define ATTACH     0x00000008
+#endif
+#ifdef SQLITE_OMIT_AUTOINCREMENT
+#  define AUTOINCR   0
+#else
+#  define AUTOINCR   0x00000010
+#endif
+#ifdef SQLITE_OMIT_CAST
+#  define CAST       0
+#else
+#  define CAST       0x00000020
+#endif
+#ifdef SQLITE_OMIT_COMPOUND_SELECT
+#  define COMPOUND   0
+#else
+#  define COMPOUND   0x00000040
+#endif
+#ifdef SQLITE_OMIT_CONFLICT_CLAUSE
+#  define CONFLICT   0
+#else
+#  define CONFLICT   0x00000080
+#endif
+#ifdef SQLITE_OMIT_EXPLAIN
+#  define EXPLAIN    0
+#else
+#  define EXPLAIN    0x00000100
+#endif
+#ifdef SQLITE_OMIT_FOREIGN_KEY
+#  define FKEY       0
+#else
+#  define FKEY       0x00000200
+#endif
+#ifdef SQLITE_OMIT_PRAGMA
+#  define PRAGMA     0
+#else
+#  define PRAGMA     0x00000400
+#endif
+#ifdef SQLITE_OMIT_REINDEX
+#  define REINDEX    0
+#else
+#  define REINDEX    0x00000800
+#endif
+#ifdef SQLITE_OMIT_SUBQUERY
+#  define SUBQUERY   0
+#else
+#  define SUBQUERY   0x00001000
+#endif
+#ifdef SQLITE_OMIT_TRIGGER
+#  define TRIGGER    0
+#else
+#  define TRIGGER    0x00002000
+#endif
+#if defined(SQLITE_OMIT_AUTOVACUUM) && \
+    (defined(SQLITE_OMIT_VACUUM) || defined(SQLITE_OMIT_ATTACH))
+#  define VACUUM     0
+#else
+#  define VACUUM     0x00004000
+#endif
+#ifdef SQLITE_OMIT_VIEW
+#  define VIEW       0
+#else
+#  define VIEW       0x00008000
+#endif
+#ifdef SQLITE_OMIT_VIRTUALTABLE
+#  define VTAB       0
+#else
+#  define VTAB       0x00010000
+#endif
+#ifdef SQLITE_OMIT_AUTOVACUUM
+#  define AUTOVACUUM 0
+#else
+#  define AUTOVACUUM 0x00020000
+#endif
+
+/*
+** These are the keywords
+*/
+static Keyword aKeywordTable[] = {
+  { "ABORT",            "TK_ABORT",        CONFLICT|TRIGGER       },
+  { "ACTION",           "TK_ACTION",       FKEY                   },
+  { "ADD",              "TK_ADD",          ALTER                  },
+  { "AFTER",            "TK_AFTER",        TRIGGER                },
+  { "ALL",              "TK_ALL",          ALWAYS                 },
+  { "ALTER",            "TK_ALTER",        ALTER                  },
+  { "ANALYZE",          "TK_ANALYZE",      ANALYZE                },
+  { "AND",              "TK_AND",          ALWAYS                 },
+  { "AS",               "TK_AS",           ALWAYS                 },
+  { "ASC",              "TK_ASC",          ALWAYS                 },
+  { "ATTACH",           "TK_ATTACH",       ATTACH                 },
+  { "AUTOINCREMENT",    "TK_AUTOINCR",     AUTOINCR               },
+  { "BEFORE",           "TK_BEFORE",       TRIGGER                },
+  { "BEGIN",            "TK_BEGIN",        ALWAYS                 },
+  { "BETWEEN",          "TK_BETWEEN",      ALWAYS                 },
+  { "BY",               "TK_BY",           ALWAYS                 },
+  { "CASCADE",          "TK_CASCADE",      FKEY                   },
+  { "CASE",             "TK_CASE",         ALWAYS                 },
+  { "CAST",             "TK_CAST",         CAST                   },
+  { "CHECK",            "TK_CHECK",        ALWAYS                 },
+  { "COLLATE",          "TK_COLLATE",      ALWAYS                 },
+  { "COLUMN",           "TK_COLUMNKW",     ALTER                  },
+  { "COMMIT",           "TK_COMMIT",       ALWAYS                 },
+  { "CONFLICT",         "TK_CONFLICT",     CONFLICT               },
+  { "CONSTRAINT",       "TK_CONSTRAINT",   ALWAYS                 },
+  { "CREATE",           "TK_CREATE",       ALWAYS                 },
+  { "CROSS",            "TK_JOIN_KW",      ALWAYS                 },
+  { "CURRENT_DATE",     "TK_CTIME_KW",     ALWAYS                 },
+  { "CURRENT_TIME",     "TK_CTIME_KW",     ALWAYS                 },
+  { "CURRENT_TIMESTAMP","TK_CTIME_KW",     ALWAYS                 },
+  { "DATABASE",         "TK_DATABASE",     ATTACH                 },
+  { "DEFAULT",          "TK_DEFAULT",      ALWAYS                 },
+  { "DEFERRED",         "TK_DEFERRED",     ALWAYS                 },
+  { "DEFERRABLE",       "TK_DEFERRABLE",   FKEY                   },
+  { "DELETE",           "TK_DELETE",       ALWAYS                 },
+  { "DESC",             "TK_DESC",         ALWAYS                 },
+  { "DETACH",           "TK_DETACH",       ATTACH                 },
+  { "DISTINCT",         "TK_DISTINCT",     ALWAYS                 },
+  { "DROP",             "TK_DROP",         ALWAYS                 },
+  { "END",              "TK_END",          ALWAYS                 },
+  { "EACH",             "TK_EACH",         TRIGGER                },
+  { "ELSE",             "TK_ELSE",         ALWAYS                 },
+  { "ESCAPE",           "TK_ESCAPE",       ALWAYS                 },
+  { "EXCEPT",           "TK_EXCEPT",       COMPOUND               },
+  { "EXCLUSIVE",        "TK_EXCLUSIVE",    ALWAYS                 },
+  { "EXISTS",           "TK_EXISTS",       ALWAYS                 },
+  { "EXPLAIN",          "TK_EXPLAIN",      EXPLAIN                },
+  { "FAIL",             "TK_FAIL",         CONFLICT|TRIGGER       },
+  { "FOR",              "TK_FOR",          TRIGGER                },
+  { "FOREIGN",          "TK_FOREIGN",      FKEY                   },
+  { "FROM",             "TK_FROM",         ALWAYS                 },
+  { "FULL",             "TK_JOIN_KW",      ALWAYS                 },
+  { "GLOB",             "TK_LIKE_KW",      ALWAYS                 },
+  { "GROUP",            "TK_GROUP",        ALWAYS                 },
+  { "HAVING",           "TK_HAVING",       ALWAYS                 },
+  { "IF",               "TK_IF",           ALWAYS                 },
+  { "IGNORE",           "TK_IGNORE",       CONFLICT|TRIGGER       },
+  { "IMMEDIATE",        "TK_IMMEDIATE",    ALWAYS                 },
+  { "IN",               "TK_IN",           ALWAYS                 },
+  { "INDEX",            "TK_INDEX",        ALWAYS                 },
+  { "INDEXED",          "TK_INDEXED",      ALWAYS                 },
+  { "INITIALLY",        "TK_INITIALLY",    FKEY                   },
+  { "INNER",            "TK_JOIN_KW",      ALWAYS                 },
+  { "INSERT",           "TK_INSERT",       ALWAYS                 },
+  { "INSTEAD",          "TK_INSTEAD",      TRIGGER                },
+  { "INTERSECT",        "TK_INTERSECT",    COMPOUND               },
+  { "INTO",             "TK_INTO",         ALWAYS                 },
+  { "IS",               "TK_IS",           ALWAYS                 },
+  { "ISNULL",           "TK_ISNULL",       ALWAYS                 },
+  { "JOIN",             "TK_JOIN",         ALWAYS                 },
+  { "KEY",              "TK_KEY",          ALWAYS                 },
+  { "LEFT",             "TK_JOIN_KW",      ALWAYS                 },
+  { "LIKE",             "TK_LIKE_KW",      ALWAYS                 },
+  { "LIMIT",            "TK_LIMIT",        ALWAYS                 },
+  { "MATCH",            "TK_MATCH",        ALWAYS                 },
+  { "NATURAL",          "TK_JOIN_KW",      ALWAYS                 },
+  { "NO",               "TK_NO",           FKEY                   },
+  { "NOT",              "TK_NOT",          ALWAYS                 },
+  { "NOTNULL",          "TK_NOTNULL",      ALWAYS                 },
+  { "NULL",             "TK_NULL",         ALWAYS                 },
+  { "OF",               "TK_OF",           ALWAYS                 },
+  { "OFFSET",           "TK_OFFSET",       ALWAYS                 },
+  { "ON",               "TK_ON",           ALWAYS                 },
+  { "OR",               "TK_OR",           ALWAYS                 },
+  { "ORDER",            "TK_ORDER",        ALWAYS                 },
+  { "OUTER",            "TK_JOIN_KW",      ALWAYS                 },
+  { "PLAN",             "TK_PLAN",         EXPLAIN                },
+  { "PRAGMA",           "TK_PRAGMA",       PRAGMA                 },
+  { "PRIMARY",          "TK_PRIMARY",      ALWAYS                 },
+  { "QUERY",            "TK_QUERY",        EXPLAIN                },
+  { "RAISE",            "TK_RAISE",        TRIGGER                },
+  { "REFERENCES",       "TK_REFERENCES",   FKEY                   },
+  { "REGEXP",           "TK_LIKE_KW",      ALWAYS                 },
+  { "REINDEX",          "TK_REINDEX",      REINDEX                },
+  { "RELEASE",          "TK_RELEASE",      ALWAYS                 },
+  { "RENAME",           "TK_RENAME",       ALTER                  },
+  { "REPLACE",          "TK_REPLACE",      CONFLICT               },
+  { "RESTRICT",         "TK_RESTRICT",     FKEY                   },
+  { "RIGHT",            "TK_JOIN_KW",      ALWAYS                 },
+  { "ROLLBACK",         "TK_ROLLBACK",     ALWAYS                 },
+  { "ROW",              "TK_ROW",          TRIGGER                },
+  { "SAVEPOINT",        "TK_SAVEPOINT",    ALWAYS                 },
+  { "SELECT",           "TK_SELECT",       ALWAYS                 },
+  { "SET",              "TK_SET",          ALWAYS                 },
+  { "TABLE",            "TK_TABLE",        ALWAYS                 },
+  { "TEMP",             "TK_TEMP",         ALWAYS                 },
+  { "TEMPORARY",        "TK_TEMP",         ALWAYS                 },
+  { "THEN",             "TK_THEN",         ALWAYS                 },
+  { "TO",               "TK_TO",           ALWAYS                 },
+  { "TRANSACTION",      "TK_TRANSACTION",  ALWAYS                 },
+  { "TRIGGER",          "TK_TRIGGER",      TRIGGER                },
+  { "UNION",            "TK_UNION",        COMPOUND               },
+  { "UNIQUE",           "TK_UNIQUE",       ALWAYS                 },
+  { "UPDATE",           "TK_UPDATE",       ALWAYS                 },
+  { "USING",            "TK_USING",        ALWAYS                 },
+  { "VACUUM",           "TK_VACUUM",       VACUUM                 },
+  { "VALUES",           "TK_VALUES",       ALWAYS                 },
+  { "VIEW",             "TK_VIEW",         VIEW                   },
+  { "VIRTUAL",          "TK_VIRTUAL",      VTAB                   },
+  { "WHEN",             "TK_WHEN",         ALWAYS                 },
+  { "WHERE",            "TK_WHERE",        ALWAYS                 },
+};
+
+/* Number of keywords */
+static int nKeyword = (sizeof(aKeywordTable)/sizeof(aKeywordTable[0]));
+
+/* An array to map all upper-case characters into their corresponding
+** lower-case character. 
+*/
+const unsigned char sqlite3UpperToLower[] = {
+      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17,
+     18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
+     36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53,
+     54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 97, 98, 99,100,101,102,103,
+    104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,
+    122, 91, 92, 93, 94, 95, 96, 97, 98, 99,100,101,102,103,104,105,106,107,
+    108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,
+    126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,
+    144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,
+    162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,
+    180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,
+    198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,
+    216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,
+    234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,
+    252,253,254,255
+};
+#define UpperToLower sqlite3UpperToLower
+
+/*
+** Comparision function for two Keyword records
+*/
+static int keywordCompare1(const void *a, const void *b){
+  const Keyword *pA = (Keyword*)a;
+  const Keyword *pB = (Keyword*)b;
+  int n = pA->len - pB->len;
+  if( n==0 ){
+    n = strcmp(pA->zName, pB->zName);
+  }
+  assert( n!=0 );
+  return n;
+}
+static int keywordCompare2(const void *a, const void *b){
+  const Keyword *pA = (Keyword*)a;
+  const Keyword *pB = (Keyword*)b;
+  int n = pB->longestSuffix - pA->longestSuffix;
+  if( n==0 ){
+    n = strcmp(pA->zName, pB->zName);
+  }
+  assert( n!=0 );
+  return n;
+}
+static int keywordCompare3(const void *a, const void *b){
+  const Keyword *pA = (Keyword*)a;
+  const Keyword *pB = (Keyword*)b;
+  int n = pA->offset - pB->offset;
+  if( n==0 ) n = pB->id - pA->id;
+  assert( n!=0 );
+  return n;
+}
+
+/*
+** Return a KeywordTable entry with the given id
+*/
+static Keyword *findById(int id){
+  int i;
+  for(i=0; i<nKeyword; i++){
+    if( aKeywordTable[i].id==id ) break;
+  }
+  return &aKeywordTable[i];
+}
+
+/*
+** This routine does the work.  The generated code is printed on standard
+** output.
+*/
+int main(int argc, char **argv){
+  int i, j, k, h;
+  int bestSize, bestCount;
+  int count;
+  int nChar;
+  int totalLen = 0;
+  int aHash[1000];  /* 1000 is much bigger than nKeyword */
+  char zText[2000];
+
+  /* Remove entries from the list of keywords that have mask==0 */
+  for(i=j=0; i<nKeyword; i++){
+    if( aKeywordTable[i].mask==0 ) continue;
+    if( j<i ){
+      aKeywordTable[j] = aKeywordTable[i];
+    }
+    j++;
+  }
+  nKeyword = j;
+
+  /* Fill in the lengths of strings and hashes for all entries. */
+  for(i=0; i<nKeyword; i++){
+    Keyword *p = &aKeywordTable[i];
+    p->len = strlen(p->zName);
+    assert( p->len<sizeof(p->zOrigName) );
+    strcpy(p->zOrigName, p->zName);
+    totalLen += p->len;
+    p->hash = (UpperToLower[(int)p->zName[0]]*4) ^
+              (UpperToLower[(int)p->zName[p->len-1]]*3) ^ p->len;
+    p->id = i+1;
+  }
+
+  /* Sort the table from shortest to longest keyword */
+  qsort(aKeywordTable, nKeyword, sizeof(aKeywordTable[0]), keywordCompare1);
+
+  /* Look for short keywords embedded in longer keywords */
+  for(i=nKeyword-2; i>=0; i--){
+    Keyword *p = &aKeywordTable[i];
+    for(j=nKeyword-1; j>i && p->substrId==0; j--){
+      Keyword *pOther = &aKeywordTable[j];
+      if( pOther->substrId ) continue;
+      if( pOther->len<=p->len ) continue;
+      for(k=0; k<=pOther->len-p->len; k++){
+        if( memcmp(p->zName, &pOther->zName[k], p->len)==0 ){
+          p->substrId = pOther->id;
+          p->substrOffset = k;
+          break;
+        }
+      }
+    }
+  }
+
+  /* Compute the longestSuffix value for every word */
+  for(i=0; i<nKeyword; i++){
+    Keyword *p = &aKeywordTable[i];
+    if( p->substrId ) continue;
+    for(j=0; j<nKeyword; j++){
+      Keyword *pOther;
+      if( j==i ) continue;
+      pOther = &aKeywordTable[j];
+      if( pOther->substrId ) continue;
+      for(k=p->longestSuffix+1; k<p->len && k<pOther->len; k++){
+        if( memcmp(&p->zName[p->len-k], pOther->zName, k)==0 ){
+          p->longestSuffix = k;
+        }
+      }
+    }
+  }
+
+  /* Sort the table into reverse order by length */
+  qsort(aKeywordTable, nKeyword, sizeof(aKeywordTable[0]), keywordCompare2);
+
+  /* Fill in the offset for all entries */
+  nChar = 0;
+  for(i=0; i<nKeyword; i++){
+    Keyword *p = &aKeywordTable[i];
+    if( p->offset>0 || p->substrId ) continue;
+    p->offset = nChar;
+    nChar += p->len;
+    for(k=p->len-1; k>=1; k--){
+      for(j=i+1; j<nKeyword; j++){
+        Keyword *pOther = &aKeywordTable[j];
+        if( pOther->offset>0 || pOther->substrId ) continue;
+        if( pOther->len<=k ) continue;
+        if( memcmp(&p->zName[p->len-k], pOther->zName, k)==0 ){
+          p = pOther;
+          p->offset = nChar - k;
+          nChar = p->offset + p->len;
+          p->zName += k;
+          p->len -= k;
+          p->prefix = k;
+          j = i;
+          k = p->len;
+        }
+      }
+    }
+  }
+  for(i=0; i<nKeyword; i++){
+    Keyword *p = &aKeywordTable[i];
+    if( p->substrId ){
+      p->offset = findById(p->substrId)->offset + p->substrOffset;
+    }
+  }
+
+  /* Sort the table by offset */
+  qsort(aKeywordTable, nKeyword, sizeof(aKeywordTable[0]), keywordCompare3);
+
+  /* Figure out how big to make the hash table in order to minimize the
+  ** number of collisions */
+  bestSize = nKeyword;
+  bestCount = nKeyword*nKeyword;
+  for(i=nKeyword/2; i<=2*nKeyword; i++){
+    for(j=0; j<i; j++) aHash[j] = 0;
+    for(j=0; j<nKeyword; j++){
+      h = aKeywordTable[j].hash % i;
+      aHash[h] *= 2;
+      aHash[h]++;
+    }
+    for(j=count=0; j<i; j++) count += aHash[j];
+    if( count<bestCount ){
+      bestCount = count;
+      bestSize = i;
+    }
+  }
+
+  /* Compute the hash */
+  for(i=0; i<bestSize; i++) aHash[i] = 0;
+  for(i=0; i<nKeyword; i++){
+    h = aKeywordTable[i].hash % bestSize;
+    aKeywordTable[i].iNext = aHash[h];
+    aHash[h] = i+1;
+  }
+
+  /* Begin generating code */
+  printf("%s", zHdr);
+  printf("/* Hash score: %d */\n", bestCount);
+  printf("static int keywordCode(const char *z, int n){\n");
+  printf("  /* zText[] encodes %d bytes of keywords in %d bytes */\n",
+          totalLen + nKeyword, nChar+1 );
+  for(i=j=k=0; i<nKeyword; i++){
+    Keyword *p = &aKeywordTable[i];
+    if( p->substrId ) continue;
+    memcpy(&zText[k], p->zName, p->len);
+    k += p->len;
+    if( j+p->len>70 ){
+      printf("%*s */\n", 74-j, "");
+      j = 0;
+    }
+    if( j==0 ){
+      printf("  /*   ");
+      j = 8;
+    }
+    printf("%s", p->zName);
+    j += p->len;
+  }
+  if( j>0 ){
+    printf("%*s */\n", 74-j, "");
+  }
+  printf("  static const char zText[%d] = {\n", nChar);
+  zText[nChar] = 0;
+  for(i=j=0; i<k; i++){
+    if( j==0 ){
+      printf("    ");
+    }
+    if( zText[i]==0 ){
+      printf("0");
+    }else{
+      printf("'%c',", zText[i]);
+    }
+    j += 4;
+    if( j>68 ){
+      printf("\n");
+      j = 0;
+    }
+  }
+  if( j>0 ) printf("\n");
+  printf("  };\n");
+
+  printf("  static const unsigned char aHash[%d] = {\n", bestSize);
+  for(i=j=0; i<bestSize; i++){
+    if( j==0 ) printf("    ");
+    printf(" %3d,", aHash[i]);
+    j++;
+    if( j>12 ){
+      printf("\n");
+      j = 0;
+    }
+  }
+  printf("%s  };\n", j==0 ? "" : "\n");    
+
+  printf("  static const unsigned char aNext[%d] = {\n", nKeyword);
+  for(i=j=0; i<nKeyword; i++){
+    if( j==0 ) printf("    ");
+    printf(" %3d,", aKeywordTable[i].iNext);
+    j++;
+    if( j>12 ){
+      printf("\n");
+      j = 0;
+    }
+  }
+  printf("%s  };\n", j==0 ? "" : "\n");    
+
+  printf("  static const unsigned char aLen[%d] = {\n", nKeyword);
+  for(i=j=0; i<nKeyword; i++){
+    if( j==0 ) printf("    ");
+    printf(" %3d,", aKeywordTable[i].len+aKeywordTable[i].prefix);
+    j++;
+    if( j>12 ){
+      printf("\n");
+      j = 0;
+    }
+  }
+  printf("%s  };\n", j==0 ? "" : "\n");    
+
+  printf("  static const unsigned short int aOffset[%d] = {\n", nKeyword);
+  for(i=j=0; i<nKeyword; i++){
+    if( j==0 ) printf("    ");
+    printf(" %3d,", aKeywordTable[i].offset);
+    j++;
+    if( j>12 ){
+      printf("\n");
+      j = 0;
+    }
+  }
+  printf("%s  };\n", j==0 ? "" : "\n");
+
+  printf("  static const unsigned char aCode[%d] = {\n", nKeyword);
+  for(i=j=0; i<nKeyword; i++){
+    char *zToken = aKeywordTable[i].zTokenType;
+    if( j==0 ) printf("    ");
+    printf("%s,%*s", zToken, (int)(14-strlen(zToken)), "");
+    j++;
+    if( j>=5 ){
+      printf("\n");
+      j = 0;
+    }
+  }
+  printf("%s  };\n", j==0 ? "" : "\n");
+
+  printf("  int h, i;\n");
+  printf("  if( n<2 ) return TK_ID;\n");
+  printf("  h = ((charMap(z[0])*4) ^\n"
+         "      (charMap(z[n-1])*3) ^\n"
+         "      n) %% %d;\n", bestSize);
+  printf("  for(i=((int)aHash[h])-1; i>=0; i=((int)aNext[i])-1){\n");
+  printf("    if( aLen[i]==n &&"
+                   " sqlite3StrNICmp(&zText[aOffset[i]],z,n)==0 ){\n");
+  for(i=0; i<nKeyword; i++){
+    printf("      testcase( i==%d ); /* %s */\n",
+           i, aKeywordTable[i].zOrigName);
+  }
+  printf("      return aCode[i];\n");
+  printf("    }\n");
+  printf("  }\n");
+  printf("  return TK_ID;\n");
+  printf("}\n");
+  printf("int sqlite3KeywordCode(const unsigned char *z, int n){\n");
+  printf("  return keywordCode((char*)z, n);\n");
+  printf("}\n");
+  printf("#define SQLITE_N_KEYWORD %d\n", nKeyword);
+
+  return 0;
+}