diff --git a/n.c b/n.c
index df075fc..868f14c 100644
--- a/n.c
+++ b/n.c
@@ -499,15 +499,12 @@ static int sigetch(sifile_t *fp) {
 static int siungetch(int c, sifile_t *fp) {
   assert(fp && fp->p); --(fp->p); assert(c == *(fp->p)); return c; }
 
-static int sictl(ctlop_t op, sifile_t *fp, ...)
-{
+static int sictl(ctlop_t op, sifile_t *fp, ...) {
   if (op == CTLOP_RDLN) {
-    va_list args; int **pd;
-    va_start(args, fp); 
+    va_list args; int **pd; va_start(args, fp); 
     pd = va_arg(args, int **);
-    if (*(fp->p) == 0) {
-      *pd = NULL;
-    } else {
+    if (*(fp->p) == 0) *pd = NULL;
+    else {
       char *s = strchr(fp->p, '\n');
       if (s) { *pd = newstringn(fp->p, s-fp->p); fp->p = s+1; }
       else { *pd = newstring(fp->p); fp->p += strlen(fp->p); }
@@ -518,8 +515,6 @@ static int sictl(ctlop_t op, sifile_t *fp, ...)
   return -1;
 }
 
-
-
 bvifile_t *bvialloc(unsigned char *p, unsigned char *e, void *base) { 
   bvifile_t *fp = cxm_cknull(malloc(sizeof(bvifile_t)), "malloc(bvifile)");
   fp->p = p; fp->e = e; fp->base = base; return fp; }
@@ -582,7 +577,7 @@ char* cbdata(cbuf_t* pcb) {
 cbuf_t *cbclear(cbuf_t *pcb) { pcb->fill = pcb->buf; return pcb; }
 
 typedef enum { TIF_NONE = 0, TIF_EOF = 1, TIF_CI = 2 } tiflags_t;
-typedef struct tifile_tag { cbuf_t cb; char *next; FILE *fp; int lno; tiflags_t flags; } tifile_t;
+struct tifile_tag { cbuf_t cb; char *next; FILE *fp; int lno; tiflags_t flags; };
 
 tifile_t *tialloc(FILE *fp) {
   tifile_t *tp = cxm_cknull(malloc(sizeof(tifile_t)), "malloc(tifile)");
@@ -605,7 +600,6 @@ static int tigetch(tifile_t *tp) {
   else if (tp->flags & TIF_EOF || !tp->fp) return EOF;
   else { /* refill with next line from fp */
     cbuf_t *pcb = cbclear(&tp->cb); FILE *fp = tp->fp; 
-#if 1
     char *line = fgets(cballoc(pcb, 256), 256, fp);
     if (!line) { cbclear(pcb); tp->flags |= TIF_EOF; }
     else { /* manually add the rest of the line */
@@ -615,10 +609,6 @@ static int tigetch(tifile_t *tp) {
         if (c == EOF) tp->flags |= TIF_EOF;
       }
     }
-#else
-    do { c = getc(fp); if (c == EOF) break; cbputc(c, pcb); } while (c != '\n');
-    if (c == EOF) tp->flags |= TIF_EOF;
-#endif
     tp->lno += 1; tp->next = cbdata(pcb); /* 0-term */
     goto retry;
   }
@@ -630,8 +620,7 @@ static int tiungetch(int c, tifile_t *tp) {
   return c;
 }
 
-static int tictl(ctlop_t op, tifile_t *tp, ...)
-{
+static int tictl(ctlop_t op, tifile_t *tp, ...) {
   if (op == CTLOP_RDLN) {
     va_list args; int c, n, **pd;
     va_start(args, tp); 
@@ -970,8 +959,7 @@ static void wrs(char *s, wenv_t *e) {
   assert(vt); while (*s) vt->putch(*s++, pp);
 }
 static int cleansymname(char *s) {
-#if 1
-  static char inisub_map[256] = { /* ini: [a-zA-Z!$%&*:/<=>?@^_~] sub: ini + [0123456789.@+-]  */
+  static char inisub_map[256] = { /* ini: [a-zA-Z!$%&*:/<=>?@^_~] sub: ini + [0123456789.@+-] */
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 2, 0, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 0, 1, 1, 1, 1,
     1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1,
@@ -983,11 +971,6 @@ static int cleansymname(char *s) {
   };
   char *p = s; while (*p) if (inisub_map[*p++ & 0xFF] == 0) return 0; if (!s[0]) return 0;
   if (inisub_map[s[0] & 0xFF] == 1) return 1;
-#else
-  char *inits = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!$%&*/:<=>?@^_~";
-  char *subss = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!$%&*/:<=>?@^_~0123456789.@+-";
-  if (s[0] == 0 || s[strspn(s, subss)] != 0) return 0; else if (strchr(inits, s[0])) return 1;
-#endif
   if (s[0] == '+' || s[0] == '-') {
     if (strcmp_ci(s+1, "inf.0") == 0 || strcmp_ci(s+1, "nan.0") == 0) return 0;
     if ((s[1] == 'i' || s[1] == 'I') && s[2] == 0) return 0;
diff --git a/n.h b/n.h
index ca59fa1..b49ff00 100644
--- a/n.h
+++ b/n.h
@@ -400,7 +400,7 @@ extern obj* procedureref(obj o, int i);
 #define mkshebang(i) mkimm(i, SHEBANG_ITAG)
 #define getshebang(o) getimmu(o, SHEBANG_ITAG)
 /* input/output ports */
-typedef enum { CTLOP_RDLN } ctlop_t; 
+typedef enum { CTLOP_RDLN } ctlop_t;
 typedef struct { /* extends cxtype_t */
   const char *tname;
   void (*free)(void*);
@@ -488,9 +488,8 @@ static void oportflush(obj o) {
 typedef struct cbuf_tag { char *buf; char *fill; char *end; } cbuf_t;
 extern cbuf_t* newcb(void);
 extern void freecb(cbuf_t* pcb);
+extern char* cballoc(cbuf_t* pcb, size_t n);
 extern int cbputc(int c, cbuf_t* pcb);
-extern int cbgetc(cbuf_t* pcb);
-extern int cbungetc(cbuf_t* pcb, int c);
 extern size_t cblen(cbuf_t* pcb);
 extern char* cbdata(cbuf_t* pcb);
 extern cbuf_t* cbclear(cbuf_t *pcb);
diff --git a/pre/n.sf b/pre/n.sf
index dfa691a..460b1de 100644
--- a/pre/n.sf
+++ b/pre/n.sf
@@ -969,7 +969,7 @@ unsigned char* bytevectorref(obj o, int i) {
     pd = va_arg(args, int **);
     if (*(fp->p) == 0) *pd = NULL;
     else {
-      char *s = strchr(fp->p, '\n');
+      char *s = strchr(fp->p, '\\n');
       if (s) { *pd = newstringn(fp->p, s-fp->p); fp->p = s+1; }
       else { *pd = newstring(fp->p); fp->p += strlen(fp->p); }
     }  
@@ -1080,7 +1080,7 @@ unsigned char* bytevectorref(obj o, int i) {
 (%localdef "char* cbdata(cbuf_t* pcb) {
   if (pcb->fill == pcb->end) cbgrow(pcb, 1); *(pcb->fill) = 0; return pcb->buf; 
 }")
-(%definition "extern cbuf_t* cbclear(cbuf_t* pcb);")
+(%definition "extern cbuf_t* cbclear(cbuf_t *pcb);")
 (%localdef "cbuf_t *cbclear(cbuf_t *pcb) { pcb->fill = pcb->buf; return pcb; }")
 (%definition "#define mkoport_string(l, fp) hpushptr(fp, OPORT_STRING_NTAG, l)")
 
@@ -1091,9 +1091,7 @@ unsigned char* bytevectorref(obj o, int i) {
 
 ; text input port (uses cbuf)
 
-(%localdef "buf_t *cbclear(cbuf_t *pcb) { pcb->fill = pcb->buf; return pcb; }
-
-typedef enum { TIF_NONE = 0, TIF_EOF = 1, TIF_CI = 2 } tiflags_t;
+(%localdef "typedef enum { TIF_NONE = 0, TIF_EOF = 1, TIF_CI = 2 } tiflags_t;
 struct tifile_tag { cbuf_t cb; char *next; FILE *fp; int lno; tiflags_t flags; };
 
 tifile_t *tialloc(FILE *fp) {
@@ -1121,8 +1119,8 @@ static int tigetch(tifile_t *tp) {
     if (!line) { cbclear(pcb); tp->flags |= TIF_EOF; }
     else { /* manually add the rest of the line */
       size_t len = strlen(line); pcb->fill = pcb->buf + len;
-      if (len > 0 && line[len-1] != '\n') {
-        do { c = getc(fp); if (c == EOF) break; cbputc(c, pcb); } while (c != '\n');
+      if (len > 0 && line[len-1] != '\\n') {
+        do { c = getc(fp); if (c == EOF) break; cbputc(c, pcb); } while (c != '\\n');
         if (c == EOF) tp->flags |= TIF_EOF;
       }
     }
@@ -1148,7 +1146,7 @@ static int tictl(ctlop_t op, tifile_t *tp, ...) {
     } else {
       char *s; tiungetch(c, tp);
       s = tp->next; n = tp->cb.fill - s;
-      if (n > 0 && s[n-1] == '\n') --n;
+      if (n > 0 && s[n-1] == '\\n') --n;
       *pd = newstringn(s, n);
       tp->next = tp->cb.fill;
     }  
@@ -1735,7 +1733,7 @@ extern int set_cwd(char *cwd)
   return chdir(cwd);
 }
 
-define TT_FALSE      'f'
+#define TT_FALSE      'f'
 #define TT_TRUE       't'
 #define TT_NUMBER     'n'
 #define TT_CHAR       'c'
@@ -2054,5 +2052,4 @@ int slex(int (*in_getc)(void*), int (*in_ungetc)(int, void*), void *in, cbuf_t *
   err:
   eoferr:
     return TT_ERR;
-}
-")
+}")