/* -*- buffer-read-only: t -*- vi: set ro:
*
* DO NOT EDIT THIS FILE (greek.c)
*
* It has been AutoGen-ed April 15, 2012 at 11:22:30 AM by AutoGen 5.16pre23
* From the definitions greek.def
* and the template file dispatch.tpl
*
* Recognizer generation options:
*
* external scope
* gperf generated
* partial name matches are matched, if the match is unique
* A dispatch routine is generated that will call handler routines
*/
#include "greek.h"
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* The hash code was generated by "gperf(1GNU)" from the following:
*
* %{
* #include <stdio.h>
* %}
* struct greek_index { char const * name; int const idx; };
* %%
* alpha, 1
* beta, 2
* gamma, 3
* delta, 4
* omega, 5
* help, 6
* %%
*/
struct greek_index { char const * name; int const idx; };
/* maximum key range = 9, duplicates = 0 */
#ifdef __GNUC__
#else
#ifdef __cplusplus
inline
#endif
#endif
static unsigned int
greek_hash (register const char *str, register unsigned int len)
{
static const unsigned char asso_values[] =
{
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 7, 5, 13,
2, 13, 13, 5, 0, 13, 13, 13, 13, 13,
13, 0, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
13, 13, 13, 13, 13, 13
};
return len + asso_values[(unsigned char)str[0]];
}
#ifdef __GNUC__
#if defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__
#endif
#endif
static const struct greek_index *
greek_find (register const char *str, register unsigned int len)
{
enum
{
TOTAL_KEYWORDS = 6,
MIN_WORD_LENGTH = 4,
MAX_WORD_LENGTH = 5,
MIN_HASH_VALUE = 4,
MAX_HASH_VALUE = 12
};
static const struct greek_index wordlist[] =
{
{""}, {""}, {""}, {""},
{"help", 6},
{"omega", 5},
{""},
{"delta", 4},
{""},
{"beta", 2},
{"gamma", 3},
{""},
{"alpha", 1}
};
if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH)
{
register int key = greek_hash (str, len);
if (key <= MAX_HASH_VALUE && key >= 0)
{
register const char *s = wordlist[key].name;
if (*str == *s && !strcmp (str + 1, s + 1))
return &wordlist[key];
}
}
return 0;
}
/*
* END of gperf code
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
static struct greek_index const greek_mapping_table[] = {
{ "alpha", 1 },
{ "beta", 2 },
{ "delta", 4 },
{ "gamma", 3 },
{ "help", 6 },
{ "omega", 5 } };
extern greek_enum_t
greek_enum(char const * name, char const ** next)
{
size_t nmlen = 0;
char name_buf[6];
/*
* Skip leading white space and figure out how many name characters
* there are. It cannot be longer than the longest name in our table.
*/
while (isspace(*name)) name++;
if (isalpha(*name)) {
char const * ps = name;
char * pd = name_buf;
for (;;) {
char ch = *(ps++);
if (isupper(ch))
*(pd++) = _tolower(ch);
else if (isalnum(ch))
*(pd++) = ch;
else switch (ch) {
case '-':
case '_': *(pd++) = '_'; break;
default: goto name_scan_done;
}
if (++nmlen > 5)
return GREEK_INVALID;
} name_scan_done:;
*pd = '\0';
}
{
struct greek_index const * xlat = greek_find(name_buf, nmlen);
if (xlat != NULL) {
if (next != NULL) {
name += nmlen;
while (isspace(*name)) name++;
*next = name;
}
return (greek_enum_t)xlat->idx;
}
}
/* check for partial match: */
{
int av;
int hi = 6 - 1;
int lo = 0;
for (;;) {
int cmp;
av = (hi + lo) / 2;
cmp = strncmp(greek_mapping_table[av].name, name_buf, nmlen);
if (cmp == 0)
break;
if (cmp < 0)
lo = av + 1;
else
hi = av - 1;
if (hi < lo)
return GREEK_INVALID;
}
if ((av > 0) &&
(strncmp(greek_mapping_table[av-1].name, name_buf, nmlen) == 0))
return GREEK_INVALID;
if ((av < 5) &&
(strncmp(greek_mapping_table[av+1].name, name_buf, nmlen) == 0))
return GREEK_INVALID;
if (next != NULL) {
name += nmlen;
while (isspace(*name)) name++;
*next = name;
}
return (greek_enum_t)greek_mapping_table[av].idx;
}
}
extern char const *
greek_name(greek_enum_t cmd)
{
/*
* Table of Command Names
*/
static char const * const names[7] = {
"** INVALID **", "alpha", "beta", "gamma",
"delta", "omega", "help" };
if ((unsigned)cmd > 6)
cmd = GREEK_INVALID;
return names[cmd];
}
typedef int (handle_greek_t)(char const * cmd, void * cookie);
extern handle_greek_t do_inval_greek,
do_alpha, do_beta, do_gamma, do_delta, do_omega, do_help;
static handle_greek_t * const hdl_procs[7] = {
do_inval_greek,
do_alpha, do_beta, do_gamma, do_delta, do_omega, do_help };
extern int
dispatch_greek(char const * cmd, void * cookie)
{
greek_enum_t id = greek_enum(cmd, &cmd);
handle_greek_t * hdl = hdl_procs[id];
return (*hdl)(cmd, cookie);
}
/* end of greek.c */