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#5773

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This commit is contained in:
Nikolaj Bjorner 2022-01-12 13:28:15 -08:00
parent 0720998bac
commit dfe2b27f9a
4 changed files with 34 additions and 0 deletions
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3
src/api/api_ast.cpp
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@ -1213,6 +1213,9 @@ extern "C" {
case OP_STRING_STOI: return Z3_OP_STR_TO_INT;
case OP_STRING_ITOS: return Z3_OP_INT_TO_STR;
case OP_STRING_TO_CODE: return Z3_OP_STR_TO_CODE;
case OP_STRING_FROM_CODE: return Z3_OP_STR_FROM_CODE;
case OP_STRING_UBVTOS: return Z3_OP_UBV_TO_STR;
case OP_STRING_SBVTOS: return Z3_OP_SBV_TO_STR;
case OP_STRING_LT: return Z3_OP_STRING_LT;

2
src/api/api_seq.cpp
View file

@ -286,6 +286,8 @@ extern "C" {
MK_BINARY(Z3_mk_seq_contains, mk_c(c)->get_seq_fid(), OP_SEQ_CONTAINS, SKIP);
MK_BINARY(Z3_mk_str_lt, mk_c(c)->get_seq_fid(), OP_STRING_LT, SKIP);
MK_BINARY(Z3_mk_str_le, mk_c(c)->get_seq_fid(), OP_STRING_LE, SKIP);
MK_UNARY(Z3_mk_string_to_code, mk_c(c)->get_seq_fid(), OP_STRING_TO_CODE, SKIP);
MK_UNARY(Z3_mk_string_from_code, mk_c(c)->get_seq_fid(), OP_STRING_FROM_CODE, SKIP);
MK_TERNARY(Z3_mk_seq_extract, mk_c(c)->get_seq_fid(), OP_SEQ_EXTRACT, SKIP);
MK_TERNARY(Z3_mk_seq_replace, mk_c(c)->get_seq_fid(), OP_SEQ_REPLACE, SKIP);

12
src/api/python/z3/z3.py
View file

@ -10961,6 +10961,18 @@ def IntToStr(s):
return SeqRef(Z3_mk_int_to_str(s.ctx_ref(), s.as_ast()), s.ctx)
def StrToCode(s):
"""Convert a unit length string to integer code"""
if not is_expr(s):
s = _py2expr(s)
return ArithRef(Z3_mk_string_to_code(s.ctx_ref(), s.as_ast()), s.ctx)
def StrFromCode(c):
"""Convert code to a string"""
if not is_expr(c):
c = _py2expr(c)
return SeqRef(Z3_mk_string_from_code(c.ctx_ref(), c.as_ast()), c.ctx)
def Re(s, ctx=None):
"""The regular expression that accepts sequence 's'
>>> s1 = Re("ab")

17
src/api/z3_api.h
View file

@ -1208,6 +1208,8 @@ typedef enum {
Z3_OP_INT_TO_STR,
Z3_OP_UBV_TO_STR,
Z3_OP_SBV_TO_STR,
Z3_OP_STR_TO_CODE,
Z3_OP_STR_FROM_CODE,
Z3_OP_STRING_LT,
Z3_OP_STRING_LE,
@ -3707,6 +3709,21 @@ extern "C" {
*/
Z3_ast Z3_API Z3_mk_int_to_str(Z3_context c, Z3_ast s);
/**
\brief String to code conversion.
def_API('Z3_mk_string_to_code', AST, (_in(CONTEXT), _in(AST)))
*/
Z3_ast Z3_API Z3_mk_string_to_code(Z3_context c, Z3_ast a);
/**
\brief Code to string conversion.
def_API('Z3_mk_string_from_code', AST, (_in(CONTEXT), _in(AST)))
*/
Z3_ast Z3_API Z3_mk_string_from_code(Z3_context c, Z3_ast a);
/**
\brief Unsigned bit-vector to string conversion.