]> git.sur5r.net Git - cc65/blob - src/ca65/macpack.c
Renamed variables for better readability.
[cc65] / src / ca65 / macpack.c
1 /*****************************************************************************/
2 /*                                                                           */
3 /*                                 macpack.c                                 */
4 /*                                                                           */
5 /*           Predefined macro packages for the ca65 macroassembler           */
6 /*                                                                           */
7 /*                                                                           */
8 /*                                                                           */
9 /* (C) 1998-2008, Ullrich von Bassewitz                                      */
10 /*                Roemerstrasse 52                                            */
11 /*                D-70794 Filderstadt                                        */
12 /* EMail:         uz@cc65.org                                                */
13 /*                                                                           */
14 /*                                                                           */
15 /* This software is provided 'as-is', without any expressed or implied       */
16 /* warranty.  In no event will the authors be held liable for any damages    */
17 /* arising from the use of this software.                                    */
18 /*                                                                           */
19 /* Permission is granted to anyone to use this software for any purpose,     */
20 /* including commercial applications, and to alter it and redistribute it    */
21 /* freely, subject to the following restrictions:                            */
22 /*                                                                           */
23 /* 1. The origin of this software must not be misrepresented; you must not   */
24 /*    claim that you wrote the original software. If you use this software   */
25 /*    in a product, an acknowledgment in the product documentation would be  */
26 /*    appreciated but is not required.                                       */
27 /* 2. Altered source versions must be plainly marked as such, and must not   */
28 /*    be misrepresented as being the original software.                      */
29 /* 3. This notice may not be removed or altered from any source              */
30 /*    distribution.                                                          */
31 /*                                                                           */
32 /*****************************************************************************/
33
34
35
36 /* common */
37 #include "check.h"
38 #include "strbuf.h"
39 #include "strutil.h"
40
41 /* ca65 */
42 #include "error.h"
43 #include "scanner.h"
44 #include "macpack.h"
45
46
47
48 /*****************************************************************************/
49 /*                                   Data                                    */
50 /*****************************************************************************/
51
52
53
54 /* Predefined macro packages converted into C strings by a perl script */
55 #include "atari.inc"
56 #include "cbm.inc"
57 #include "cpu.inc"
58 #include "generic.inc"
59 #include "longbranch.inc"
60
61 /* Table with pointers to the different packages */
62 static struct {
63     const char* Name;
64     char*       Package;
65 } MacPackages[MAC_COUNT] = {
66     /* Packages sorted by id */
67     { "atari",          MacAtari        },
68     { "cbm",            MacCBM          },
69     { "cpu",            MacCPU          },
70     { "generic",        MacGeneric      },
71     { "longbranch",     MacLongBranch   },
72 };
73
74 /* Directory that contains standard macro package files */
75 static StrBuf MacPackDir = STATIC_STRBUF_INITIALIZER;
76
77
78
79 /*****************************************************************************/
80 /*                                   Code                                    */
81 /*****************************************************************************/
82
83
84
85 int MacPackFind (const StrBuf* Name)
86 /* Find a macro package by name. The function will either return the id or
87  * -1 if the package name was not found.
88  */
89 {
90     int I;
91
92     for (I = 0; I < MAC_COUNT; ++I) {
93         if (SB_CompareStr (Name, MacPackages[I].Name) == 0) {
94             /* Found */
95             return I;
96         }
97     }
98
99     /* Not found */
100     return -1;
101 }
102
103
104
105 int MacPackInsert (int Id)
106 /* Insert the macro package with the given id in the input stream. Returns
107  * true if the macro package was found and successfully inserted. Returns
108  * false otherwise.
109  */
110 {                   
111     int RetCode;
112
113     /* Check the parameter */
114     CHECK (Id >= 0 && Id < MAC_COUNT);
115
116     /* If we have a macro package directory given, load a file from the
117      * directory, otherwise use the builtin stuff.
118      */
119     if (SB_IsEmpty (&MacPackDir)) {
120
121         /* Insert the builtin package */
122         NewInputData (MacPackages[Id].Package, 0);
123
124         /* Always successful */
125         RetCode = 1;
126
127     } else {
128
129         StrBuf Filename = AUTO_STRBUF_INITIALIZER;
130
131         /* Build the complete file name */
132         SB_Copy (&Filename, &MacPackDir);
133         SB_AppendStr (&Filename, MacPackages[Id].Name);
134         SB_AppendStr (&Filename, ".mac");
135         SB_Terminate (&Filename);
136
137         /* Open the macro package as include file */
138         RetCode = NewInputFile (SB_GetConstBuf (&Filename));
139
140         /* Destroy the contents of Filename */
141         SB_Done (&Filename);
142
143     }
144
145     /* Return the success code */
146     return RetCode;
147 }
148
149
150
151 void MacPackSetDir (const StrBuf* Dir)
152 /* Set a directory where files for macro packages can be found. Standard is
153  * to use the builtin packages. For debugging macro packages, external files
154  * can be used.
155  */
156 {
157     /* Copy the directory name to the buffer */
158     SB_Copy (&MacPackDir, Dir);
159
160     /* Make sure that the last character is a path delimiter */
161     if (SB_NotEmpty (&MacPackDir)) {
162         char C = SB_LookAtLast (&MacPackDir);
163         if (C != '\\' && C != '/') {
164             SB_AppendChar (&MacPackDir, '/');
165         }
166     }
167
168     /* Terminate the buffer so it's usable as a C string */
169     SB_Terminate (&MacPackDir);
170 }
171
172
173