Initial checkin of skeleton application. About to start reading files

[originally from svn r22]

1 files changed, 113 insertions, 0 deletions

diff --git a/buttress.h b/buttress.h
new file mode 100644
index 0000000..afb38ae
--- /dev/null
+++ b/buttress.h
@@ -0,0 +1,113 @@
+#ifndef BUTTRESS_BUTTRESS_H
+#define BUTTRESS_BUTTRESS_H
+
+#ifdef __GNUC__
+#define NORETURN __attribute__((__noreturn__))
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+/*
+ * Structure tags
+ */
+typedef struct input_Tag input;
+typedef struct paragraph_Tag paragraph;
+typedef struct word_Tag word;
+
+/*
+ * Data structure to hold all the file names etc for input
+ */
+#define INPUT_PUSHBACK_MAX 16
+struct input_Tag {
+    char **filenames;		       /* complete list of input files */
+    int nfiles;			       /* how many in the list */
+    FILE *currfp;		       /* the currently open one */
+    int currindex;		       /* which one is that in the list */
+    char pushback[INPUT_PUSHBACK_MAX]; /* pushed-back input characters */
+    int npushback;
+};
+
+/*
+ * Data structure to hold the input form of the source, ie a linked
+ * list of paragraphs
+ */
+struct paragraph_Tag {
+    paragraph *next;
+    int type;
+    char *keyword;		       /* for IR, IA, and heading paras */
+    word *words;		       /* list of words in paragraph */
+} paragraph;
+enum {
+    para_IA,			       /* index alias */
+    para_IR,			       /* index rewrite */
+    para_Chapter,
+    para_Appendix,
+    para_Heading,
+    para_Subsect,
+    para_Normal,
+    para_Bullet,
+    para_Code
+};
+
+/*
+ * Data structure to hold an individual word
+ */
+struct word_Tag {
+    word *next;
+    int type;
+    char *text;
+}
+enum {
+    word_Normal,
+    word_Emph,
+    word_Code,
+    word_IndexRef		       /* always invisible */
+}
+
+/*
+ * error.c
+ */
+void fatal(int code, ...) NORETURN;
+void error(int code, ...);
+enum {
+    err_nomemory,		       /* out of memory */
+    err_optnoarg,		       /* option `-%s' requires an argument */
+    err_nosuchopt,		       /* unrecognised option `-%s' */
+    err_noinput,		       /* no input files */
+};
+
+/*
+ * malloc.c
+ */
+void *smalloc(int size);
+void *srealloc(void *p, int size);
+void sfree(void *p);
+
+/*
+ * help.c
+ */
+void help(void);
+void usage(void);
+void showversion(void);
+
+/*
+ * licence.c
+ */
+void licence(void);
+
+/*
+ * version.c
+ */
+const char *const version;
+
+/*
+ * input.c
+ */
+paragraph *read_input(input *in);
+
+#endif