From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 8 Jul 2015 20:46:52 -0400
Subject: Initial commit

---
 sys/psio/psdeposit.x | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 sys/psio/psdeposit.x

(limited to 'sys/psio/psdeposit.x')

diff --git a/sys/psio/psdeposit.x b/sys/psio/psdeposit.x
new file mode 100644
index 00000000..a3df3ea9
--- /dev/null
+++ b/sys/psio/psdeposit.x
@@ -0,0 +1,94 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include <ctype.h>
+include "psio.h"
+
+
+# PS_DEPOSIT -- Deposit a line of text to the output buffer.  When the output
+# width exceeds the permanent right margin the line us flushed to the output
+# file and the x-position reset to the current left margin, the y-pos is 
+# moved to the next line dependent on the font size.   Remaining words in the
+# line buffer to added to the next line buffer. 
+
+procedure ps_deposit (ps, line)
+
+pointer	ps					#I PSIO descriptor
+char	line[ARB]				#I text line
+
+char	word[SZ_FNAME]
+pointer	wbuf, wp
+int	i, ip, start_ip
+int	len, width, curpos, rmargin
+
+int	strlen(), ps_textwidth(), ps_chwidth()
+errchk	ps_chwidth, ps_textwidth, ps_linebreak
+
+begin
+	# Process the line, collect all the words that will fit on the
+	# line and add to the word buffer.  When the line fills output
+	# it, otherwise fill the buffer.
+
+	wbuf = PS_WBPTR(ps)
+	wp = PS_WBPTR(ps) + strlen (Memc[wbuf])
+	curpos = PS_CLMARGIN(ps) + ps_textwidth (ps, Memc[wbuf])
+	rmargin = PS_CRMPOS(ps)
+	len = strlen (line)
+
+	# Trim trailing whitespace or newlines.
+	for ( ; IS_WHITE(line[len]) || line[len] == '\n'; len=len-1)
+	    line[len] = EOS
+
+	# Take care of any leading whitespace.  Tabs are treated as
+	# spaces, we assume the caller has 'detabbed' the line before
+	# we are called.
+	for (ip=1; IS_WHITE(line[ip]); ip=ip+1)
+	    width = width + ps_chwidth (line[ip], PS_CFONT(ps))
+	if (PS_JUSTIFY(ps) == NO)
+	    curpos = curpos + width
+
+	# Process the rest of the line.
+	for (; ip <= len; ip=ip+1) {
+
+	    # Get the next word on the line and it's length.
+	    start_ip = ip
+	    for (i=1; !IS_WHITE(line[ip]) && line[ip] != EOS; i=i+1) {
+		word[i] = line[ip]
+		ip = ip + 1
+	    }
+	    word[i] = EOS
+	    len = ps_textwidth (ps, word)
+
+	    if (curpos + len > rmargin) {
+		# We would overflow the line so break it here.
+		len = strlen (Memc[wbuf])
+		Memc[wbuf+len-1] = EOS
+		call ps_linebreak (ps, PS_JUSTIFY(ps))
+
+		call aclrc (Memc[wbuf], SZ_FNAME)
+		call strcpy (line[start_ip], Memc[wbuf], SZ_LINE)
+		call strcat (" ", Memc[wbuf], SZ_LINE)
+		return
+
+	    } else {
+		# Copy the word to the buffer and update the position.
+		call strcat (word, Memc[wbuf], SZ_LINE)
+		curpos = curpos + len
+	 	wp = wp + strlen (word)
+	    }
+
+	    # Get the spaces between words.
+	    for (; IS_WHITE(line[ip]) && line[ip] != EOS; ip=ip+1) {
+		curpos = curpos + ps_chwidth (line[ip], PS_CFONT(ps))
+		Memc[wp] = line[ip]
+		wp = wp + 1
+	    }
+
+	    if (line[ip] == EOS)
+		break
+	    else
+	        ip = ip - 1
+	}
+
+	call strcat (" ", Memc[wbuf], SZ_LINE)
+	PS_XPOS(ps) = curpos
+end
-- 
cgit