强大的字符串容器SCClString。
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站长推荐:NSetup一键部署软件
一键式完成美化安装包制作，自动增量升级，数据统计，数字签名。应对各种复杂场景，脚本模块化拆分，常规复杂的脚本代码，图形化设置。无需专业的研发经验，轻松完成项目部署。(www.nsetup.cn)
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typedef struct { // author : Jelo Wang // notes : SCClString // since : 20090816 // (c)TOK char* data ; // length of data int length ; int last_walker ; // actual length of contents about the data int add_walker ; int get_walker ; } SCClString ; SCClString* SCClStringNew () { // author : Jelo Wang // since : 20100430 // (C)TOK return (SCClString* ) SCMalloc ( sizeof(SCClString ) ) ; } SCClString* SCClStringCreate ( char* el , int len ) { // author : Jelo Wang // since : 20091128 // (C)TOK SCClString* string = (SCClString* ) SCMalloc ( sizeof(SCClString) ) ; int walker = 0 ; if ( !string ) return 0 ; string->data = (char* ) SCMalloc ( len + 1 ) ; if ( !string->data ) return 0 ; for ( walker = 0 ; walker < len ; walker ++ ) { string->data [ walker ] = el [ walker ] ; } string->add_walker = len ; string->get_walker = 0 ; string->last_walker = 0 ; string->length = len ; return string ; } void SCClStringInit ( SCClString* string ) { // author : Jelo Wang // since : 20090816 // (C)TOK if ( 0 < string->data ) SCFree ( string->data ) ; string->add_walker = 0 ; string->get_walker = 0 ; string->last_walker = 0 ; string->data = (char* ) SCMalloc ( SCClSLEN + 1 ) ; string->length = SCClSLEN ; } void SCClStringInitEx ( SCClString* string , int len ) { // author : Jelo Wang // since : 20090816 // (C)TOK if ( 0 < string->data ) SCFree ( string->data ) ; string->data = (char* ) SCMalloc ( len + 1 ) ; string->add_walker = 0 ; string->get_walker = 0 ; string->last_walker = 0 ; string->length = len ; } void SCClStringReset ( SCClString* string ) { // author : Jelo Wang // since : 20091128 // (C)TOK string->add_walker = 0 ; string->get_walker = 0 ; string->last_walker = 0 ; } void SCClStringAdd ( SCClString* string , char el ) { // author : Jelo Wang // since : 20090816 // (C)TOK if ( 0 < string->add_walker && '\0' == string->data [string->add_walker-1] ) { string->add_walker = string->add_walker - 1 ; string->length = string->length - 1 ; } if ( string->add_walker >= string->length ) { string->length ++ ; string->data = (char* ) SCRealloc ( string->data , string->length + 1 ) ; } string->data [ string->add_walker ] = el ; string->add_walker ++ ; } int SCClStringAddStr ( SCClString* string , char* el ) { // author : Jelo Wang // since : 20090816 // (C)TOK int counter = 0 ; int ellen = 0 ; if ( !el ) return 0 ; ellen = sc_strlen (el) ; if ( 0 == string->length && ellen ) { string->data = (char* ) SCMalloc ( ellen + 1 ) ; string->length = ellen ; string->add_walker = string->length ; sc_strcpy ( string->data , el ); return 1 ; } if ( 0 < string->add_walker && '\0' == string->data [string->add_walker-1] ) { string->add_walker = string->add_walker - 1 ; string->length = string->length - 1 ; } if ( string->add_walker >= string->length ) { string->data = (char* ) SCRealloc ( string->data , string->length + ellen ) ; string->length += ellen ; } for ( counter = 0 ; counter < ellen ; counter ++ ) { string->data [ string->add_walker ] = el [ counter ] ; string->add_walker ++ ; } return 1 ; } void SCClStringInsert ( SCClString* A , char* S , int start ) { // author : Jelo Wang // since : 20090830 // (C)TOK int walker = 0 ; int counter = 0 ; int move_step = 0 ; int move_border = 0 ; int len_s = sc_strlen (S) ; if ( 0 < A->add_walker && '\0' == A->data [A->add_walker-1] ) { A->add_walker = A->add_walker - 1 ; A->length = A->length - 1 ; } if ( (len_s + A->add_walker + 1) >= A->length ) { A->data = (char* ) SCRealloc ( A->data , A->length + len_s + 1 ) ; A->length = A->length + len_s + 1 ; } move_step = len_s ; move_border = start ; for ( walker = A->add_walker ; walker >= move_border ; walker -- ) { A->data [ move_step + walker ] = A->data [ walker ] ; } for ( counter = start ; counter < start + len_s ; counter ++ ) { A->data [ counter ] = S [ counter - start ] ; A->add_walker ++ ; } A->data [ A->add_walker ] = '\0' ; } void SCClStringInsertAtom ( SCClString* A , char atom , int start , int end ) { // author : Jelo Wang // since : 20090921 // (C)TOK int walker = 0 ; int counter = 0 ; for ( counter = start ; counter < start + end && counter < A->length ; counter ++ ) { A->data [ counter ] = atom ; } } char* SCClStringGetStr ( SCClString* string ) { // author : Jelo Wang // since : 20090816 // (C)TOK return string->data ; } void SCClStringRepStr ( SCClString* A , char* S , int start , int len_d ) { // author : Jelo Wang // since : 20090816 // updated : 20090827 // (C)TOK // notes : replace a substr of B from A with C // notes : if start > sc_strlen(A) the length of A would be realloc int walker = 0 ; int counter = 0 ; int move_step = 0 ; int move_border = 0 ; int len_s = sc_strlen ( S ) ; if ( len_s > A->length ) { A->length = A->length + (len_s - len_d) ; A->data = SCRealloc ( A->data , A->length ) ; } else if ( len_s > len_d ) { A->length = A->length + len_s - len_d ; A->data = SCRealloc ( A->data , A->length + 1 ) ; } if ( len_s == len_d ) { // len_s == len_d // step = 1 , border = A -> length (no need to move anything) move_step = 0 ; move_border = A->length ; } else if ( len_s > len_d ) { // len_s > len_d // step = len_s - len_d , border = start + len_d move_step = len_s - len_d ; move_border = start + len_d ; // the last length of data = A->length-(len_s - len_d)-1 for ( walker = A->length - (len_s - len_d)-1 ; walker >= move_border ; walker -- ) { A->data [ move_step + walker ] = A->data [ walker ] ; } A->add_walker = A->add_walker + move_step ; A->data [ A->add_walker ] = '\0' ; } else if ( len_d > len_s ) { // len_d > len_s // step = 1 , border = start + len_d move_step = 0 ; move_border = start + len_d ; } if ( len_s == len_d ) { for ( counter = start ; counter < start + len_s ; counter ++ ) { A->data [ counter ] = S [ counter - start ] ; } } else if ( len_s > len_d ) { for ( counter = start ; counter < start + len_s ; counter ++ ) { A->data [ counter ] = S [ counter - start ] ; } } else if ( len_d > len_s ) { for ( counter = start ; counter < start + len_d ; counter ++ ) { if ( counter < start + len_s ) A->data [ counter ] = S [ counter - start ] ; else A->data [ counter ] = 0x20 ; } } } void SCClStringRepStrMulti ( SCClString* A , char* B , char* C ) { // author : Jelo Wang // since : 20090816 // (C)TOK // notes : lookup all substr B in A , then replace B with C // input : A = "asdf b sadf asdf bbb sdf b" // input : B = b // input : C = B // output: A = "asdf B sadf asdf bbb sdf B" int walker = 0 ; int counter = 0 ; int len_d = sc_strlen(B) ; if ( !B || !C ) return ; for ( walker = 0 ; walker < A->length ; walker ++ ) { if ( !sc_substrcmp ( A->data , B , walker ) ) { SCClStringRepStr ( A , C , walker , len_d ) ; } } } void SCClStringDestroy ( SCClString* string ) { // author : Jelo Wang // since : 20090816 // (C)TOK if ( !string ) return ; if ( string->data ) SCFree ( string->data ) ; SCFree ( string ) ; } void SCClStringDestroyKernal ( SCClString* string ) { // author : Jelo Wang // since : 20090816 // (C)TOK if ( !string ) return ; if ( string->data ) SCFree ( string->data ) ; } |
相比数值，字符串是最难处理的数据形式，SCClString提供了一整套常用的SDK，如字符串切割、两串拼接等。最大的优点是其内存管理模块， 开发者不需要自己分配内存，SCClString会根据情况自行处理。
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