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thinp.h

NAME

thai/thinp.h -

Thai string input sequence filtering.

SYNOPSIS

Data Structures

struct thinpconv_t
Input sequence correction info.

Enumerations

enum thstrict_t { ISC_PASSTHROUGH = 0, ISC_BASICCHECK = 1, ISC_STRICT = 2 }
Strictness of input sequence checking, according to WTT 2.0.

Functions

int th_isaccept (thchar_t c1, thchar_t c2, thstrict_t s)
Check for acceptance of input sequence.
int th_validate (struct thcell_t context, thchar_t c, struct thinpconv_t *conv)
Check and try to correct input sequence.

Detailed Description

Thai string input sequence filtering.

Enumeration Type Documentation

enum thstrict_t

Strictness of input sequence checking, according to WTT 2.0.

Enumerator:

ISC_PASSTHROUGH

No check

ISC_BASICCHECK

Basic check

ISC_STRICT

Strict check

Function Documentation

int th_isaccept (thchar_t c1, thchar_t c2, thstrict_t s)

Check for acceptance of input sequence. Parameters:

c1 : previous character
c2 : the newly input character
s : strictness level

Returns:

non-zero if accepted, 0 otherwise

Checks if, according to WTT 2.0 strictness level s, c2 is allowed after c1.

int th_validate (struct thcell_t context, thchar_t c, struct thinpconv_t * conv)

Check and try to correct input sequence. Parameters:

context : previous cell
c : the newly input character
conv : the storage for resulting correction info

Returns:

0 if the input is to be rejected non-zero otherwise.

Given the previous cell as context, edit the input buffer using the given input c, maintaining WTT canonical order, and do some convenient correction in conv.

Author

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