This commit was manufactured by cvs2svn to create branch 'SAMBA_3_0'.
[sfrench/samba-autobuild/.git] / source / aparser / token.awk
1 # tokenise the input file
2
3 function parse_error(msg) {
4         printf("PARSE ERROR: %s\nLine "NR" : "$0"\n", msg);
5         exit 1;
6 }
7
8 # ignore multi-line C comments.
9 {
10   if (t = index($0, "/*")) {
11     if (t > 1)
12       tmp = substr($0, 1, t - 1)
13     else
14       tmp = ""
15     u = index(substr($0, t + 2), "*/")
16     while (u == 0) {
17       getline
18       t = -1
19       u = index($0, "*/")
20     }
21     if (u <= length($0) - 2)
22       $0 = tmp substr($0, t + u + 3)
23     else
24       $0 = tmp
25   }
26 }
27
28 # ignore blank lines
29 /^[ \t]*$/ {
30         next;
31 }
32
33 /^\#define.*/ {
34         split($0,a,"[ \t;]*");
35         parse_define(a[2], a[3]);
36         next;
37 }
38
39 # ignore comments
40 /^[ \t]*\#/ {
41         next;
42 }
43
44 /^[ \t]*module/ {
45         {if (module!="") parse_error("you can only specify one module name");}
46         start_module($2);
47         next;
48 }
49
50 {if (module=="") parse_error("you must specify the module name first");}
51
52 /^[ \t]*option/ {
53         set_option($2, $3);
54         next;
55 }
56
57 /^[ \t]*typedef struct.*\{/ {
58         {if (current_struct!="") parse_error("you cannot have nested structures");}
59         start_struct($3);
60         next;
61 }
62
63 /^[ \t]*struct.*\{/ {
64         {if (current_struct!="") parse_error("you cannot have nested structures");}
65         start_struct($2);
66         next;
67 }
68
69 /^[ \t]*typedef union.*\{/ {
70         {if (current_struct!="") parse_error("this cannot appear inside a structure");}
71         split($0,a,"[ \t;()]*");
72         start_union_encap(a[4], a[6], a[7], a[8]);
73         next;
74 }
75
76 /^[ \t]*void.*\(/ {
77         {if (current_struct!="") parse_error("you cannot have nested structures");}
78         split($0,a,"[ \t;()]*");
79         start_function(a[2], a[3]);
80         return_result="void";
81         next;
82 }
83
84 /^[ \t]*STATUS.*\(|^[ \t]*void.*\(/ {
85         {if (current_struct!="") parse_error("you cannot have nested structures");}
86         split($0,a,"[ \t;()]*");
87         start_function(a[2], a[3]);
88         return_result="STATUS";
89         next;
90 }
91
92 {if (current_struct=="") parse_error("this must appear inside a structure");}
93
94 /^[ \t]*union.*\{/ {
95         {if (current_union!="") parse_error("you cannot have nested unions");}
96         start_union($2);
97         next;
98 }
99
100 /^[ \t]*\[switch_is.*union.*\{/ {
101         {if (current_union!="") parse_error("you cannot have nested unions");}
102         split($0,a,"[ \t;()]*");
103         start_union_notencap(a[3]);
104         next;
105 }
106
107 /^[ \t]*case.*;/ {
108         {if (current_union=="") parse_error("this must appear inide a union");}
109         split($0,a,"[ \t;]*");
110         parse_case(a[3],a[4],a[5]);
111         next;
112 }
113
114 /^[ \t]*\[case(.*)\].*;/ {
115         {if (current_union=="") parse_error("this must appear inide a union");}
116         split($0,a,"[ \t;()[\]]*");
117         parse_case(a[6],a[8],a[9]);
118         next;
119 }
120
121 /^[ \t]*\}$/ {
122         {if (current_union=="") parse_error("this must appear inside a union");}
123         end_union("");
124         next;
125 }
126
127 /^[ \t]*\} .*;/ {
128         if (current_union!="") {
129                 split($2,a,"[ \t;]*");
130                 end_union(a[1]);
131                 next;
132         }
133 }
134
135 {if (current_union!="") parse_error("this cannot appear inside a union");}
136
137 /^[ \t]*\};/ {
138         end_struct("");
139         next;
140 }
141
142 /^[ \t]*\} .*;/ {
143         split($2,a,"[ \t;]*");
144         end_struct(a[1]);
145         next;
146 }
147
148 /^[ \t]*\);/ {
149         end_function();
150         return_result="";
151         next;
152 }
153
154 /^.*size_is.*\*.*;/ {
155         split($0,a,"[ \t;()]*");
156         add_sizeis_array(a[3], a[5], a[6]);
157         next;
158 }
159
160 /^.*;/ {
161         split($0,a,"[ \t;]*");
162         add_struct_elem(a[2], a[3]);
163         next;
164 }
165
166 /^[\t ]*void/ {
167         next;
168 }
169
170 /^[ \t]*\[.*\].*/ {
171         split($0,a,"[ \t;]*");
172         split(a[4], b, "[,]");
173         add_function_param(a[2], a[3], b[1]);
174         next;
175 }
176
177 {
178         parse_error("Unknown construct.");
179 }
180