Reorganisation of the source tree

Most of the other users of the fptools build system have migrated to
Cabal, and with the move to darcs we can now flatten the source tree
without losing history, so here goes.

The main change is that the ghc/ subdir is gone, and most of what it
contained is now at the top level.  The build system now makes no
pretense at being multi-project, it is just the GHC build system.

No doubt this will break many things, and there will be a period of
instability while we fix the dependencies.  A straightforward build
should work, but I haven't yet fixed binary/source distributions.
Changes to the Building Guide will follow, too.

1 files changed, 168 insertions, 0 deletions

diff --git a/utils/hp2ps/AuxFile.c b/utils/hp2ps/AuxFile.c
new file mode 100644
index 0000000000..9998d3fc13
--- /dev/null
+++ b/utils/hp2ps/AuxFile.c
@@ -0,0 +1,168 @@
+#include "Main.h"
+#include <ctype.h>
+#include <stdio.h>
+#include <string.h>
+#include "Defines.h"
+#include "Shade.h"
+#include "Error.h"
+#include "HpFile.h"
+#include "Reorder.h"
+
+/* own stuff */
+#include "AuxFile.h"
+
+static void GetAuxLine PROTO((FILE *));	/* forward */
+static void GetAuxTok  PROTO((FILE *));	/* forward */
+
+void
+GetAuxFile(auxfp)
+  FILE* auxfp;
+{
+    ch = ' ';
+    endfile = 0;
+    linenum = 1;
+ 
+    GetAuxTok(auxfp);
+ 
+    while (endfile == 0) {
+        GetAuxLine(auxfp);
+    }
+
+    fclose(auxfp);
+}
+
+
+
+/*
+ *      Read the next line from the aux file, check the syntax, and 
+ *	perform the appropriate action.
+ */
+
+static void
+GetAuxLine(auxfp)
+  FILE* auxfp;
+{
+    switch (thetok) {
+    case X_RANGE_TOK:
+	GetAuxTok(auxfp);
+	if (thetok != FLOAT_TOK) {
+	    Error("%s, line %d, floating point number must follow X_RANGE", 
+                  auxfile, linenum);
+	}
+	auxxrange = thefloatish;
+        GetAuxTok(auxfp);
+	break;
+    case Y_RANGE_TOK:
+	GetAuxTok(auxfp);
+	if (thetok != FLOAT_TOK) {
+	    Error("%s, line %d, floating point number must follow Y_RANGE", 
+                  auxfile, linenum);
+	}
+	auxyrange = thefloatish;
+        GetAuxTok(auxfp);
+	break;
+    case ORDER_TOK:
+	GetAuxTok(auxfp);
+	if (thetok != IDENTIFIER_TOK) {
+            Error("%s, line %d: identifier must follow ORDER",
+                  auxfile, linenum);
+        }
+	GetAuxTok(auxfp);
+        if (thetok != INTEGER_TOK) {
+            Error("%s, line %d: identifier and integer must follow ORDER",
+                  auxfile, linenum);
+        }
+	OrderFor(theident, theinteger);
+	GetAuxTok(auxfp);
+        break;
+    case SHADE_TOK:
+	GetAuxTok(auxfp);
+	if (thetok != IDENTIFIER_TOK) {
+	    Error("%s, line %d: identifier must follow SHADE", 
+                  auxfile, linenum);
+	}
+	GetAuxTok(auxfp);
+	if (thetok != FLOAT_TOK) {
+	    Error("%s, line %d: identifier and floating point number must follow SHADE",
+	          auxfile, linenum);
+	}
+        ShadeFor(theident, thefloatish);
+	GetAuxTok(auxfp); 
+        break;
+    case EOF_TOK:
+        endfile = 1;
+	break;
+    default:
+	Error("%s, line %d: %s unexpected", auxfile, linenum,
+	      TokenToString(thetok));
+	break;
+    }
+}
+
+
+
+/*
+ *      Read the next token from the input and assign its value
+ *      to the global variable "thetok". In the case of numbers,
+ *      the corresponding value is also assigned to "thefloatish"; 
+ * 	in the case of identifiers it is assigned to "theident".
+ */
+ 
+static void GetAuxTok(auxfp)
+FILE* auxfp;
+{
+
+    while (isspace(ch)) {               /* skip whitespace */
+        if (ch == '\n') linenum++;
+        ch = getc(auxfp);
+    } 
+
+    if (ch == EOF) {
+        thetok = EOF_TOK;
+        return;
+    }
+
+    if (isdigit(ch)) {
+        thetok = GetNumber(auxfp);
+        return;
+    } else if (IsIdChar(ch)) {          /* ch can't be a digit here */
+        GetIdent(auxfp);
+	if (!isupper((int)theident[0])) {
+            thetok = IDENTIFIER_TOK;
+        } else if (strcmp(theident, "X_RANGE") == 0) {
+            thetok = X_RANGE_TOK;
+        } else if (strcmp(theident, "Y_RANGE") == 0) {
+            thetok = Y_RANGE_TOK;
+        } else if (strcmp(theident, "ORDER") == 0) {
+            thetok = ORDER_TOK;
+        } else if (strcmp(theident, "SHADE") == 0) {
+            thetok = SHADE_TOK;
+        } else {
+            thetok = IDENTIFIER_TOK;
+        }
+        return;
+    } else {
+        Error("%s, line %d: strange character (%c)", auxfile, linenum, ch);
+    }
+}
+
+void
+PutAuxFile(auxfp)
+  FILE* auxfp;
+{
+    int i;
+
+    fprintf(auxfp, "X_RANGE %.2f\n", xrange);
+    fprintf(auxfp, "Y_RANGE %.2f\n", yrange);
+
+    for (i = 0; i < nidents; i++) {
+        fprintf(auxfp, "ORDER %s %d\n", identtable[i]->name, i+1);
+    }
+
+    for (i = 0; i < nidents; i++) {
+        fprintf(auxfp, "SHADE %s %.2f\n", identtable[i]->name, 
+                       ShadeOf(identtable[i]->name));
+    }
+
+    fclose(auxfp);
+}