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1 | /* |
1 | /* |
2 | Copyright (C) 1993 Free Software Foundation |
2 | Copyright (C) 1993 Free Software Foundation |
3 | 3 | ||
4 | This file is part of the GNU IO Library. This library is free |
4 | This file is part of the GNU IO Library. This library is free |
5 | software; you can redistribute it and/or modify it under the |
5 | software; you can redistribute it and/or modify it under the |
6 | terms of the GNU General Public License as published by the |
6 | terms of the GNU General Public License as published by the |
7 | Free Software Foundation; either version 2, or (at your option) |
7 | Free Software Foundation; either version 2, or (at your option) |
8 | any later version. |
8 | any later version. |
9 | 9 | ||
10 | This library is distributed in the hope that it will be useful, |
10 | This library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
13 | GNU General Public License for more details. |
14 | 14 | ||
15 | You should have received a copy of the GNU General Public License |
15 | You should have received a copy of the GNU General Public License |
16 | along with this library; see the file COPYING. If not, write to the Free |
16 | along with this library; see the file COPYING. If not, write to the Free |
17 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
17 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
18 | 18 | ||
19 | As a special exception, if you link this library with files |
19 | As a special exception, if you link this library with files |
20 | compiled with a GNU compiler to produce an executable, this does not cause |
20 | compiled with a GNU compiler to produce an executable, this does not cause |
21 | the resulting executable to be covered by the GNU General Public License. |
21 | the resulting executable to be covered by the GNU General Public License. |
22 | This exception does not however invalidate any other reasons why |
22 | This exception does not however invalidate any other reasons why |
23 | the executable file might be covered by the GNU General Public License. */ |
23 | the executable file might be covered by the GNU General Public License. */ |
24 | 24 | ||
25 | /* |
25 | /* |
26 | * Copyright (c) 1990 Regents of the University of California. |
26 | * Copyright (c) 1990 Regents of the University of California. |
27 | * All rights reserved. |
27 | * All rights reserved. |
28 | * |
28 | * |
29 | * Redistribution and use in source and binary forms, with or without |
29 | * Redistribution and use in source and binary forms, with or without |
30 | * modification, are permitted provided that the following conditions |
30 | * modification, are permitted provided that the following conditions |
31 | * are met: |
31 | * are met: |
32 | * 1. Redistributions of source code must retain the above copyright |
32 | * 1. Redistributions of source code must retain the above copyright |
33 | * notice, this list of conditions and the following disclaimer. |
33 | * notice, this list of conditions and the following disclaimer. |
34 | * 2. Redistributions in binary form must reproduce the above copyright |
34 | * 2. Redistributions in binary form must reproduce the above copyright |
35 | * notice, this list of conditions and the following disclaimer in the |
35 | * notice, this list of conditions and the following disclaimer in the |
36 | * documentation and/or other materials provided with the distribution. |
36 | * documentation and/or other materials provided with the distribution. |
37 | * 3. [rescinded 22 July 1999] |
37 | * 3. [rescinded 22 July 1999] |
38 | * 4. Neither the name of the University nor the names of its contributors |
38 | * 4. Neither the name of the University nor the names of its contributors |
39 | * may be used to endorse or promote products derived from this software |
39 | * may be used to endorse or promote products derived from this software |
40 | * without specific prior written permission. |
40 | * without specific prior written permission. |
41 | * |
41 | * |
42 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
42 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
43 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
43 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
44 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
44 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
45 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
45 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
46 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
46 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
47 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
47 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
48 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
48 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
49 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
49 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
50 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
50 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
51 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
51 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
52 | * SUCH DAMAGE. |
52 | * SUCH DAMAGE. |
53 | */ |
53 | */ |
54 | 54 | ||
55 | /* * **************************************************************************** |
55 | /* * **************************************************************************** |
56 | This file is a patched version of printf called _printf_P |
56 | This file is a patched version of printf called _printf_P |
57 | It is made to work with avr-gcc for Atmel AVR MCUs. |
57 | It is made to work with avr-gcc for Atmel AVR MCUs. |
58 | There are some differences from standard printf: |
58 | There are some differences from standard printf: |
59 | 1. There is no floating point support (with fp the code is about 8K!) |
59 | 1. There is no floating point support (with fp the code is about 8K!) |
60 | 2. Return type is void |
60 | 2. Return type is void |
61 | 3. Format string must be in program memory (by using macro printf this is |
61 | 3. Format string must be in program memory (by using macro printf this is |
62 | done automaticaly) |
62 | done automaticaly) |
63 | 4. %n is not implemented (just remove the comment around it if you need it) |
63 | 4. %n is not implemented (just remove the comment around it if you need it) |
64 | 5. If LIGHTPRINTF is defined, the code is about 550 bytes smaller and the |
64 | 5. If LIGHTPRINTF is defined, the code is about 550 bytes smaller and the |
65 | folowing specifiers are disabled : |
65 | folowing specifiers are disabled : |
66 | space # * . - + p s o O |
66 | space # * . - + p s o O |
67 | 6. A function void uart_sendchar(char c) is used for output. The UART must |
67 | 6. A function void uart_sendchar(char c) is used for output. The UART must |
68 | be initialized before using printf. |
68 | be initialized before using printf. |
69 | 69 | ||
70 | Alexander Popov |
70 | Alexander Popov |
71 | sasho@vip.orbitel.bg |
71 | sasho@vip.orbitel.bg |
72 | ****************************************************************************** |
72 | ****************************************************************************** |
73 | Changed file to work with LPC - ARM. |
73 | Changed file to work with LPC - ARM. |
74 | Ingo Busker |
74 | Ingo Busker |
75 | busker@mikrocontroller.com 02.2005 |
75 | busker@mikrocontroller.com 02.2005 |
76 | ******************************************************************************/ |
76 | ******************************************************************************/ |
77 | 77 | ||
78 | 78 | ||
79 | /* |
79 | /* |
80 | * Actual printf innards. |
80 | * Actual printf innards. |
81 | * |
81 | * |
82 | * This code is large and complicated... |
82 | * This code is large and complicated... |
83 | */ |
83 | */ |
84 | 84 | ||
85 | #include <string.h> |
85 | #include <string.h> |
86 | #ifdef __STDC__ |
86 | #ifdef __STDC__ |
87 | #include <stdarg.h> |
87 | #include <stdarg.h> |
88 | #else |
88 | #else |
89 | #include <varargs.h> |
89 | #include <varargs.h> |
90 | #endif |
90 | #endif |
91 | #include "91x_lib.h" |
91 | #include "91x_lib.h" |
92 | #include "menu.h" |
92 | #include "printf_P.h" |
93 | - | ||
94 | - | ||
95 | //#define LIGHTPRINTF |
93 | |
96 | char Putchar(char zeichen) |
94 | void PRINT(pVoidFnctChar pPutchar, const char * ptr, unsigned int len) |
97 | { |
95 | { |
98 | DisplayBuff[DispPtr++] = zeichen; |
96 | for(;len;len--) |
99 | return(1); |
97 | (*pPutchar)(*ptr++); |
100 | } |
- | |
101 | 98 | } |
|
102 | - | ||
103 | void PRINT(const char * ptr, unsigned int len) { |
- | |
104 | for(;len;len--) |
99 | |
105 | Putchar(*ptr++); |
- | |
106 | } |
- | |
107 | 100 | void PRINTP(pVoidFnctChar pPutchar, const char * ptr, unsigned int len) |
|
108 | void PRINTP(const char * ptr, unsigned int len) { |
101 | { |
109 | for(;len;len--) |
102 | for(;len;len--) |
110 | Putchar(*ptr++); |
103 | (*pPutchar)(*ptr++); |
111 | } |
104 | } |
112 | 105 | ||
113 | void PAD_SP(signed char howmany) { |
106 | void PAD_SP(pVoidFnctChar pPutchar, signed char howmany) { |
114 | for(;howmany>0;howmany--) |
107 | for(;howmany>0;howmany--) |
115 | Putchar(' '); |
108 | (*pPutchar)(' '); |
116 | } |
109 | } |
117 | 110 | ||
118 | void PAD_0(signed char howmany) { |
111 | void PAD_0(pVoidFnctChar pPutchar, signed char howmany) { |
119 | for(;howmany>0;howmany--) |
112 | for(;howmany>0;howmany--) |
120 | Putchar('0'); |
113 | (*pPutchar)('0'); |
121 | } |
114 | } |
122 | 115 | ||
123 | #define BUF 40 |
116 | #define BUF 40 |
124 | 117 | ||
125 | /* |
118 | /* |
126 | * Macros for converting digits to letters and vice versa |
119 | * Macros for converting digits to letters and vice versa |
127 | */ |
120 | */ |
128 | #define to_digit(c) ((c) - '0') |
121 | #define to_digit(c) ((c) - '0') |
129 | #define is_digit(c) ((c)<='9' && (c)>='0') |
122 | #define is_digit(c) ((c)<='9' && (c)>='0') |
130 | #define to_char(n) ((n) + '0') |
123 | #define to_char(n) ((n) + '0') |
131 | 124 | ||
132 | /* |
125 | /* |
133 | * Flags used during conversion. |
126 | * Flags used during conversion. |
134 | */ |
127 | */ |
135 | #define LONGINT 0x01 /* long integer */ |
128 | #define LONGINT 0x01 /* long integer */ |
136 | #define LONGDBL 0x02 /* long double; unimplemented */ |
129 | #define LONGDBL 0x02 /* long double; unimplemented */ |
137 | #define SHORTINT 0x04 /* short integer */ |
130 | #define SHORTINT 0x04 /* short integer */ |
138 | #define ALT 0x08 /* alternate form */ |
131 | #define ALT 0x08 /* alternate form */ |
139 | #define LADJUST 0x10 /* left adjustment */ |
132 | #define LADJUST 0x10 /* left adjustment */ |
140 | #define ZEROPAD 0x20 /* zero (as opposed to blank) pad */ |
133 | #define ZEROPAD 0x20 /* zero (as opposed to blank) pad */ |
141 | #define HEXPREFIX 0x40 /* add 0x or 0X prefix */ |
134 | #define HEXPREFIX 0x40 /* add 0x or 0X prefix */ |
142 | 135 | ||
143 | void _printf_P (char const *fmt0, ...) /* Works with string from FLASH */ |
136 | void _printf_P (pVoidFnctChar pPutchar, char const *fmt0, ...) |
144 | { |
137 | { |
145 | va_list ap; |
138 | va_list ap; |
146 | register const char *fmt; /* format string */ |
139 | register const char *fmt; /* format string */ |
147 | register char ch; /* character from fmt */ |
140 | register char ch; /* character from fmt */ |
148 | register int n; /* handy integer (short term usage) */ |
141 | register int n; /* handy integer (short term usage) */ |
149 | register char *cp; /* handy char pointer (short term usage) */ |
142 | register char *cp; /* handy char pointer (short term usage) */ |
150 | const char *fmark; /* for remembering a place in fmt */ |
143 | const char *fmark; /* for remembering a place in fmt */ |
151 | register unsigned char flags; /* flags as above */ |
144 | register unsigned char flags; /* flags as above */ |
152 | signed char width; /* width from format (%8d), or 0 */ |
145 | signed char width; /* width from format (%8d), or 0 */ |
153 | signed char prec; /* precision from format (%.3d), or -1 */ |
146 | signed char prec; /* precision from format (%.3d), or -1 */ |
154 | char sign; /* sign prefix (' ', '+', '-', or \0) */ |
147 | char sign; /* sign prefix (' ', '+', '-', or \0) */ |
155 | unsigned long _ulong=0; /* integer arguments %[diouxX] */ |
148 | unsigned long _ulong=0; /* integer arguments %[diouxX] */ |
156 | #define OCT 8 |
149 | #define OCT 8 |
157 | #define DEC 10 |
150 | #define DEC 10 |
158 | #define HEX 16 |
151 | #define HEX 16 |
159 | unsigned char base; /* base for [diouxX] conversion */ |
152 | unsigned char base; /* base for [diouxX] conversion */ |
160 | signed char dprec; /* a copy of prec if [diouxX], 0 otherwise */ |
153 | signed char dprec; /* a copy of prec if [diouxX], 0 otherwise */ |
161 | signed char dpad; /* extra 0 padding needed for integers */ |
154 | signed char dpad; /* extra 0 padding needed for integers */ |
162 | signed char fieldsz; /* field size expanded by sign, dpad etc */ |
155 | signed char fieldsz; /* field size expanded by sign, dpad etc */ |
163 | /* The initialization of 'size' is to suppress a warning that |
156 | /* The initialization of 'size' is to suppress a warning that |
164 | 'size' might be used unitialized. It seems gcc can't |
157 | 'size' might be used unitialized. It seems gcc can't |
165 | quite grok this spaghetti code ... */ |
158 | quite grok this spaghetti code ... */ |
166 | signed char size = 0; /* size of converted field or string */ |
159 | signed char size = 0; /* size of converted field or string */ |
167 | char buf[BUF]; /* space for %c, %[diouxX], %[eEfgG] */ |
160 | char buf[BUF]; /* space for %c, %[diouxX], %[eEfgG] */ |
168 | char ox[2]; /* space for 0x hex-prefix */ |
161 | char ox[2]; /* space for 0x hex-prefix */ |
- | 162 | ||
- | 163 | if(pPutchar == NULL) return; |
|
169 | 164 | ||
170 | va_start(ap, fmt0); |
165 | va_start(ap, fmt0); |
171 | 166 | ||
172 | fmt = fmt0; |
167 | fmt = fmt0; |
173 | 168 | ||
174 | /* |
169 | /* |
175 | * Scan the format for conversions (`%' character). |
170 | * Scan the format for conversions (`%' character). |
176 | */ |
171 | */ |
177 | for (;;) { |
172 | for (;;) { |
178 | for (fmark = fmt; (ch = (*fmt)) != '\0' && ch != '%'; fmt++) |
173 | for (fmark = fmt; (ch = (*fmt)) != '\0' && ch != '%'; fmt++) |
179 | /* void */; |
174 | /* void */; |
180 | if ((n = fmt - fmark) != 0) { |
175 | if ((n = fmt - fmark) != 0) { |
181 | PRINTP(fmark, n); |
176 | PRINTP(pPutchar, fmark, n); |
182 | } |
177 | } |
183 | if (ch == '\0') |
178 | if (ch == '\0') |
184 | goto done; |
179 | goto done; |
185 | fmt++; /* skip over '%' */ |
180 | fmt++; /* skip over '%' */ |
186 | 181 | ||
187 | flags = 0; |
182 | flags = 0; |
188 | dprec = 0; |
183 | dprec = 0; |
189 | width = 0; |
184 | width = 0; |
190 | prec = -1; |
185 | prec = -1; |
191 | sign = '\0'; |
186 | sign = '\0'; |
192 | 187 | ||
193 | rflag: ch = (*fmt++); |
188 | rflag: ch = (*fmt++); |
194 | reswitch: |
189 | reswitch: |
195 | #ifdef LIGHTPRINTF |
190 | #ifdef LIGHTPRINTF |
196 | if (ch=='o' || ch=='u' || (ch|0x20)=='x') { |
191 | if (ch=='o' || ch=='u' || (ch|0x20)=='x') { |
197 | #else |
192 | #else |
198 | if (ch=='u' || (ch|0x20)=='x') { |
193 | if (ch=='u' || (ch|0x20)=='x') { |
199 | #endif |
194 | #endif |
200 | if (flags&LONGINT) { |
195 | if (flags&LONGINT) { |
201 | _ulong=va_arg(ap, unsigned long); |
196 | _ulong=va_arg(ap, unsigned long); |
202 | } else { |
197 | } else { |
203 | register unsigned int _d; |
198 | register unsigned int _d; |
204 | _d=va_arg(ap, unsigned int); |
199 | _d=va_arg(ap, unsigned int); |
205 | _ulong = flags&SHORTINT ? (unsigned long)(unsigned short)_d : (unsigned long)_d; |
200 | _ulong = flags&SHORTINT ? (unsigned long)(unsigned short)_d : (unsigned long)_d; |
206 | } |
201 | } |
207 | } |
202 | } |
208 | 203 | ||
209 | #ifndef LIGHTPRINTF |
204 | #ifndef LIGHTPRINTF |
210 | if(ch==' ') { |
205 | if(ch==' ') { |
211 | /* |
206 | /* |
212 | * ``If the space and + flags both appear, the space |
207 | * ``If the space and + flags both appear, the space |
213 | * flag will be ignored.'' |
208 | * flag will be ignored.'' |
214 | * -- ANSI X3J11 |
209 | * -- ANSI X3J11 |
215 | */ |
210 | */ |
216 | if (!sign) |
211 | if (!sign) |
217 | sign = ' '; |
212 | sign = ' '; |
218 | goto rflag; |
213 | goto rflag; |
219 | } else if (ch=='#') { |
214 | } else if (ch=='#') { |
220 | flags |= ALT; |
215 | flags |= ALT; |
221 | goto rflag; |
216 | goto rflag; |
222 | } else if (ch=='*'||ch=='-') { |
217 | } else if (ch=='*'||ch=='-') { |
223 | if (ch=='*') { |
218 | if (ch=='*') { |
224 | /* |
219 | /* |
225 | * ``A negative field width argument is taken as a |
220 | * ``A negative field width argument is taken as a |
226 | * - flag followed by a positive field width.'' |
221 | * - flag followed by a positive field width.'' |
227 | * -- ANSI X3J11 |
222 | * -- ANSI X3J11 |
228 | * They don't exclude field widths read from args. |
223 | * They don't exclude field widths read from args. |
229 | */ |
224 | */ |
230 | if ((width = va_arg(ap, int)) >= 0) |
225 | if ((width = va_arg(ap, int)) >= 0) |
231 | goto rflag; |
226 | goto rflag; |
232 | width = -width; |
227 | width = -width; |
233 | } |
228 | } |
234 | flags |= LADJUST; |
229 | flags |= LADJUST; |
235 | flags &= ~ZEROPAD; /* '-' disables '0' */ |
230 | flags &= ~ZEROPAD; /* '-' disables '0' */ |
236 | goto rflag; |
231 | goto rflag; |
237 | } else if (ch=='+') { |
232 | } else if (ch=='+') { |
238 | sign = '+'; |
233 | sign = '+'; |
239 | goto rflag; |
234 | goto rflag; |
240 | } else if (ch=='.') { |
235 | } else if (ch=='.') { |
241 | if ((ch = (*fmt++)) == '*') { |
236 | if ((ch = (*fmt++)) == '*') { |
242 | n = va_arg(ap, int); |
237 | n = va_arg(ap, int); |
243 | prec = n < 0 ? -1 : n; |
238 | prec = n < 0 ? -1 : n; |
244 | goto rflag; |
239 | goto rflag; |
245 | } |
240 | } |
246 | n = 0; |
241 | n = 0; |
247 | while (is_digit(ch)) { |
242 | while (is_digit(ch)) { |
248 | n = n*10 + to_digit(ch); |
243 | n = n*10 + to_digit(ch); |
249 | ch = (*fmt++); |
244 | ch = (*fmt++); |
250 | } |
245 | } |
251 | prec = n < 0 ? -1 : n; |
246 | prec = n < 0 ? -1 : n; |
252 | goto reswitch; |
247 | goto reswitch; |
253 | } else |
248 | } else |
254 | #endif /* LIGHTPRINTF */ |
249 | #endif /* LIGHTPRINTF */ |
255 | if (ch=='0') { |
250 | if (ch=='0') { |
256 | /* |
251 | /* |
257 | * ``Note that 0 is taken as a flag, not as the |
252 | * ``Note that 0 is taken as a flag, not as the |
258 | * beginning of a field width.'' |
253 | * beginning of a field width.'' |
259 | * -- ANSI X3J11 |
254 | * -- ANSI X3J11 |
260 | */ |
255 | */ |
261 | if (!(flags & LADJUST)) |
256 | if (!(flags & LADJUST)) |
262 | flags |= ZEROPAD; /* '-' disables '0' */ |
257 | flags |= ZEROPAD; /* '-' disables '0' */ |
263 | goto rflag; |
258 | goto rflag; |
264 | } else if (ch>='1' && ch<='9') { |
259 | } else if (ch>='1' && ch<='9') { |
265 | n = 0; |
260 | n = 0; |
266 | do { |
261 | do { |
267 | n = 10 * n + to_digit(ch); |
262 | n = 10 * n + to_digit(ch); |
268 | ch = *fmt++; |
263 | ch = *fmt++; |
269 | } while (is_digit(ch)); |
264 | } while (is_digit(ch)); |
270 | width = n; |
265 | width = n; |
271 | goto reswitch; |
266 | goto reswitch; |
272 | } else if (ch=='h') { |
267 | } else if (ch=='h') { |
273 | flags |= SHORTINT; |
268 | flags |= SHORTINT; |
274 | goto rflag; |
269 | goto rflag; |
275 | } else if (ch=='l') { |
270 | } else if (ch=='l') { |
276 | flags |= LONGINT; |
271 | flags |= LONGINT; |
277 | goto rflag; |
272 | goto rflag; |
278 | } else if (ch=='c') { |
273 | } else if (ch=='c') { |
279 | *(cp = buf) = va_arg(ap, int); |
274 | *(cp = buf) = va_arg(ap, int); |
280 | size = 1; |
275 | size = 1; |
281 | sign = '\0'; |
276 | sign = '\0'; |
282 | } else if (ch=='D'||ch=='d'||ch=='i') { |
277 | } else if (ch=='D'||ch=='d'||ch=='i') { |
283 | if(ch=='D') |
278 | if(ch=='D') |
284 | flags |= LONGINT; |
279 | flags |= LONGINT; |
285 | if (flags&LONGINT) { |
280 | if (flags&LONGINT) { |
286 | _ulong=va_arg(ap, long); |
281 | _ulong=va_arg(ap, long); |
287 | } else { |
282 | } else { |
288 | register int _d; |
283 | register int _d; |
289 | _d=va_arg(ap, int); |
284 | _d=va_arg(ap, int); |
290 | _ulong = flags&SHORTINT ? (long)(short)_d : (long)_d; |
285 | _ulong = flags&SHORTINT ? (long)(short)_d : (long)_d; |
291 | } |
286 | } |
292 | 287 | ||
293 | if ((long)_ulong < 0) { |
288 | if ((long)_ulong < 0) { |
294 | _ulong = -_ulong; |
289 | _ulong = -_ulong; |
295 | sign = '-'; |
290 | sign = '-'; |
296 | } |
291 | } |
297 | base = DEC; |
292 | base = DEC; |
298 | goto number; |
293 | goto number; |
299 | } else |
294 | } else |
300 | /* |
295 | /* |
301 | if (ch=='n') { |
296 | if (ch=='n') { |
302 | if (flags & LONGINT) |
297 | if (flags & LONGINT) |
303 | *va_arg(ap, long *) = ret; |
298 | *va_arg(ap, long *) = ret; |
304 | else if (flags & SHORTINT) |
299 | else if (flags & SHORTINT) |
305 | *va_arg(ap, short *) = ret; |
300 | *va_arg(ap, short *) = ret; |
306 | else |
301 | else |
307 | *va_arg(ap, int *) = ret; |
302 | *va_arg(ap, int *) = ret; |
308 | continue; // no output |
303 | continue; // no output |
309 | } else |
304 | } else |
310 | */ |
305 | */ |
311 | #ifndef LIGHTPRINTF |
306 | #ifndef LIGHTPRINTF |
312 | if (ch=='O'||ch=='o') { |
307 | if (ch=='O'||ch=='o') { |
313 | if (ch=='O') |
308 | if (ch=='O') |
314 | flags |= LONGINT; |
309 | flags |= LONGINT; |
315 | base = OCT; |
310 | base = OCT; |
316 | goto nosign; |
311 | goto nosign; |
317 | } else if (ch=='p') { |
312 | } else if (ch=='p') { |
318 | /* |
313 | /* |
319 | * ``The argument shall be a pointer to void. The |
314 | * ``The argument shall be a pointer to void. The |
320 | * value of the pointer is converted to a sequence |
315 | * value of the pointer is converted to a sequence |
321 | * of printable characters, in an implementation- |
316 | * of printable characters, in an implementation- |
322 | * defined manner.'' |
317 | * defined manner.'' |
323 | * -- ANSI X3J11 |
318 | * -- ANSI X3J11 |
324 | */ |
319 | */ |
325 | /* NOSTRICT */ |
320 | /* NOSTRICT */ |
326 | _ulong = (unsigned int)va_arg(ap, void *); |
321 | _ulong = (unsigned int)va_arg(ap, void *); |
327 | base = HEX; |
322 | base = HEX; |
328 | flags |= HEXPREFIX; |
323 | flags |= HEXPREFIX; |
329 | ch = 'x'; |
324 | ch = 'x'; |
330 | goto nosign; |
325 | goto nosign; |
331 | } else if (ch=='s') { // print a string from RAM |
326 | } else if (ch=='s') { // print a string from RAM |
332 | if ((cp = va_arg(ap, char *)) == NULL) { |
327 | if ((cp = va_arg(ap, char *)) == NULL) { |
333 | cp=buf; |
328 | cp=buf; |
334 | cp[0] = '('; |
329 | cp[0] = '('; |
335 | cp[1] = 'n'; |
330 | cp[1] = 'n'; |
336 | cp[2] = 'u'; |
331 | cp[2] = 'u'; |
337 | cp[4] = cp[3] = 'l'; |
332 | cp[4] = cp[3] = 'l'; |
338 | cp[5] = ')'; |
333 | cp[5] = ')'; |
339 | cp[6] = '\0'; |
334 | cp[6] = '\0'; |
340 | } |
335 | } |
341 | if (prec >= 0) { |
336 | if (prec >= 0) { |
342 | /* |
337 | /* |
343 | * can't use strlen; can only look for the |
338 | * can't use strlen; can only look for the |
344 | * NUL in the first `prec' characters, and |
339 | * NUL in the first `prec' characters, and |
345 | * strlen() will go further. |
340 | * strlen() will go further. |
346 | */ |
341 | */ |
347 | char *p = (char*)memchr(cp, 0, prec); |
342 | char *p = (char*)memchr(cp, 0, prec); |
348 | 343 | ||
349 | if (p != NULL) { |
344 | if (p != NULL) { |
350 | size = p - cp; |
345 | size = p - cp; |
351 | if (size > prec) |
346 | if (size > prec) |
352 | size = prec; |
347 | size = prec; |
353 | } else |
348 | } else |
354 | size = prec; |
349 | size = prec; |
355 | } else |
350 | } else |
356 | size = strlen(cp); |
351 | size = strlen(cp); |
357 | sign = '\0'; |
352 | sign = '\0'; |
358 | } else |
353 | } else |
359 | #endif /* LIGHTPRINTF */ |
354 | #endif /* LIGHTPRINTF */ |
360 | if(ch=='U'||ch=='u') { |
355 | if(ch=='U'||ch=='u') { |
361 | if (ch=='U') |
356 | if (ch=='U') |
362 | flags |= LONGINT; |
357 | flags |= LONGINT; |
363 | base = DEC; |
358 | base = DEC; |
364 | goto nosign; |
359 | goto nosign; |
365 | } else if (ch=='X'||ch=='x') { |
360 | } else if (ch=='X'||ch=='x') { |
366 | base = HEX; |
361 | base = HEX; |
367 | /* leading 0x/X only if non-zero */ |
362 | /* leading 0x/X only if non-zero */ |
368 | if (flags & ALT && _ulong != 0) |
363 | if (flags & ALT && _ulong != 0) |
369 | flags |= HEXPREFIX; |
364 | flags |= HEXPREFIX; |
370 | 365 | ||
371 | /* unsigned conversions */ |
366 | /* unsigned conversions */ |
372 | nosign: sign = '\0'; |
367 | nosign: sign = '\0'; |
373 | /* |
368 | /* |
374 | * ``... diouXx conversions ... if a precision is |
369 | * ``... diouXx conversions ... if a precision is |
375 | * specified, the 0 flag will be ignored.'' |
370 | * specified, the 0 flag will be ignored.'' |
376 | * -- ANSI X3J11 |
371 | * -- ANSI X3J11 |
377 | */ |
372 | */ |
378 | number: if ((dprec = prec) >= 0) |
373 | number: if ((dprec = prec) >= 0) |
379 | flags &= ~ZEROPAD; |
374 | flags &= ~ZEROPAD; |
380 | 375 | ||
381 | /* |
376 | /* |
382 | * ``The result of converting a zero value with an |
377 | * ``The result of converting a zero value with an |
383 | * explicit precision of zero is no characters.'' |
378 | * explicit precision of zero is no characters.'' |
384 | * -- ANSI X3J11 |
379 | * -- ANSI X3J11 |
385 | */ |
380 | */ |
386 | cp = buf + BUF; |
381 | cp = buf + BUF; |
387 | if (_ulong != 0 || prec != 0) { |
382 | if (_ulong != 0 || prec != 0) { |
388 | register unsigned char _d,notlastdigit; |
383 | register unsigned char _d,notlastdigit; |
389 | do { |
384 | do { |
390 | notlastdigit=(_ulong>=base); |
385 | notlastdigit=(_ulong>=base); |
391 | _d = _ulong % base; |
386 | _d = _ulong % base; |
392 | 387 | ||
393 | if (_d<10) { |
388 | if (_d<10) { |
394 | _d+='0'; |
389 | _d+='0'; |
395 | } else { |
390 | } else { |
396 | _d+='a'-10; |
391 | _d+='a'-10; |
397 | if (ch=='X') _d&=~0x20; |
392 | if (ch=='X') _d&=~0x20; |
398 | } |
393 | } |
399 | *--cp=_d; |
394 | *--cp=_d; |
400 | _ulong /= base; |
395 | _ulong /= base; |
401 | } while (notlastdigit); |
396 | } while (notlastdigit); |
402 | #ifndef LIGHTPRINTF |
397 | #ifndef LIGHTPRINTF |
403 | // handle octal leading 0 |
398 | // handle octal leading 0 |
404 | if (base==OCT && flags & ALT && *cp != '0') |
399 | if (base==OCT && flags & ALT && *cp != '0') |
405 | *--cp = '0'; |
400 | *--cp = '0'; |
406 | #endif |
401 | #endif |
407 | } |
402 | } |
408 | 403 | ||
409 | size = buf + BUF - cp; |
404 | size = buf + BUF - cp; |
410 | } else { //default |
405 | } else { //default |
411 | /* "%?" prints ?, unless ? is NUL */ |
406 | /* "%?" prints ?, unless ? is NUL */ |
412 | if (ch == '\0') |
407 | if (ch == '\0') |
413 | goto done; |
408 | goto done; |
414 | /* pretend it was %c with argument ch */ |
409 | /* pretend it was %c with argument ch */ |
415 | cp = buf; |
410 | cp = buf; |
416 | *cp = ch; |
411 | *cp = ch; |
417 | size = 1; |
412 | size = 1; |
418 | sign = '\0'; |
413 | sign = '\0'; |
419 | } |
414 | } |
420 | 415 | ||
421 | /* |
416 | /* |
422 | * All reasonable formats wind up here. At this point, |
417 | * All reasonable formats wind up here. At this point, |
423 | * `cp' points to a string which (if not flags&LADJUST) |
418 | * `cp' points to a string which (if not flags&LADJUST) |
424 | * should be padded out to `width' places. If |
419 | * should be padded out to `width' places. If |
425 | * flags&ZEROPAD, it should first be prefixed by any |
420 | * flags&ZEROPAD, it should first be prefixed by any |
426 | * sign or other prefix; otherwise, it should be blank |
421 | * sign or other prefix; otherwise, it should be blank |
427 | * padded before the prefix is emitted. After any |
422 | * padded before the prefix is emitted. After any |
428 | * left-hand padding and prefixing, emit zeroes |
423 | * left-hand padding and prefixing, emit zeroes |
429 | * required by a decimal [diouxX] precision, then print |
424 | * required by a decimal [diouxX] precision, then print |
430 | * the string proper, then emit zeroes required by any |
425 | * the string proper, then emit zeroes required by any |
431 | * leftover floating precision; finally, if LADJUST, |
426 | * leftover floating precision; finally, if LADJUST, |
432 | * pad with blanks. |
427 | * pad with blanks. |
433 | */ |
428 | */ |
434 | 429 | ||
435 | /* |
430 | /* |
436 | * compute actual size, so we know how much to pad. |
431 | * compute actual size, so we know how much to pad. |
437 | */ |
432 | */ |
438 | fieldsz = size; |
433 | fieldsz = size; |
439 | 434 | ||
440 | dpad = dprec - size; |
435 | dpad = dprec - size; |
441 | if (dpad < 0) |
436 | if (dpad < 0) |
442 | dpad = 0; |
437 | dpad = 0; |
443 | 438 | ||
444 | if (sign) |
439 | if (sign) |
445 | fieldsz++; |
440 | fieldsz++; |
446 | else if (flags & HEXPREFIX) |
441 | else if (flags & HEXPREFIX) |
447 | fieldsz += 2; |
442 | fieldsz += 2; |
448 | fieldsz += dpad; |
443 | fieldsz += dpad; |
449 | 444 | ||
450 | /* right-adjusting blank padding */ |
445 | /* right-adjusting blank padding */ |
451 | if ((flags & (LADJUST|ZEROPAD)) == 0) |
446 | if ((flags & (LADJUST|ZEROPAD)) == 0) |
452 | PAD_SP(width - fieldsz); |
447 | PAD_SP(pPutchar, width - fieldsz); |
453 | 448 | ||
454 | /* prefix */ |
449 | /* prefix */ |
455 | if (sign) { |
450 | if (sign) { |
456 | PRINT(&sign, 1); |
451 | PRINT(pPutchar, &sign, 1); |
457 | } else if (flags & HEXPREFIX) { |
452 | } else if (flags & HEXPREFIX) { |
458 | ox[0] = '0'; |
453 | ox[0] = '0'; |
459 | ox[1] = ch; |
454 | ox[1] = ch; |
460 | PRINT(ox, 2); |
455 | PRINT(pPutchar, ox, 2); |
461 | } |
456 | } |
462 | 457 | ||
463 | /* right-adjusting zero padding */ |
458 | /* right-adjusting zero padding */ |
464 | if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) |
459 | if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) |
465 | PAD_0(width - fieldsz); |
460 | PAD_0(pPutchar, width - fieldsz); |
466 | 461 | ||
467 | /* leading zeroes from decimal precision */ |
462 | /* leading zeroes from decimal precision */ |
468 | PAD_0(dpad); |
463 | PAD_0(pPutchar, dpad); |
469 | 464 | ||
470 | /* the string or number proper */ |
465 | /* the string or number proper */ |
471 | PRINT(cp, size); |
466 | PRINT(pPutchar, cp, size); |
472 | 467 | ||
473 | /* left-adjusting padding (always blank) */ |
468 | /* left-adjusting padding (always blank) */ |
474 | if (flags & LADJUST) |
469 | if (flags & LADJUST) |
475 | PAD_SP(width - fieldsz); |
470 | PAD_SP(pPutchar, width - fieldsz); |
476 | } |
471 | } |
477 | done: |
472 | done: |
478 | va_end(ap); |
473 | va_end(ap); |
479 | } |
474 | } |
480 | 475 |