mirror of
https://github.com/dschmenk/PLASMA.git
synced 2024-10-18 22:24:28 +00:00
working module based text editor
This commit is contained in:
David Schmenk
parent
e6fbdd5e68
commit
00de6686d3
@ -50,16 +50,12 @@ const keyctrlx = $98
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const keyctrlz = $9A
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const keydelete = $FF
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//
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// Input buffer
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//
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const getbuff = $01FF
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//
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// Data and text buffer constants
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//
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const MAXLINES = 1500
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const MAXLINESSIZE = MAXLINES+24
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const MAXLNLEN = 79
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const MAXSTRPLSIZE = $8000 // $7000
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const MAXSTRPLSIZE = $8000
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//const STRPLMAPSIZE = 224 // $E0 = 28K is memory@16 bytes per bit map, 128 bytes per 8 bit map, 1K bytes per 8 byte map
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const pgjmp = 16
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const changed = 1
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@ -76,16 +72,16 @@ word = $0450,$04D0,$0550,$05D0,$0650,$06D0,$0750,$07D0
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//
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// Editor variables
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//
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byte nullstr = ""
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byte[64] txtfile = "UNTITLED"
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byte exit = FALSE
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byte flags = 0
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byte flash = 0
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word numlines = 0
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word cutbuf = 0
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word strplsize = MAXSTRPLSIZE
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word strplmapsize
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word strlinbuf, strpoolmap, strpool
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byte nullstr = ""
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byte[64] filename = "UNTITLED"
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byte exit = FALSE
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byte flags = 0
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byte flash = 0
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word numlines = 0
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word cutbuf = 0
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word arg
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word strplsize = MAXSTRPLSIZE
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word strpool, strplmapsize, strlinbuf, strpoolmap
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byte cursx, cursy, scrnleft, curscol, underchr, curschr
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word keyin, cursrow, scrntop, cursptr
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//
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@ -257,18 +253,20 @@ end
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def inittxtbuf#0
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word i
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strlinbuf = heapalloc(MAXLINESSIZE*2)
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memset(strlinbuf, MAXLINESSIZE*2, @nullstr)
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while isult(heapavail, strplsize)
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strplsize = strplsize - 4096
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loop
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if isult(heapavail - strplsize, 4096) // Keep at least 4096 free
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strplsize = strplsize - 4096
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if not strpool
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strlinbuf = heapalloc(MAXLINESSIZE*2)
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while isult(heapavail, strplsize)
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strplsize = strplsize - 4096
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loop
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if isult(heapavail - strplsize, 4096) // Keep at least 4096 free
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strplsize = strplsize - 4096
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fin
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strplmapsize = strplsize / 128
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strpoolmap = heapalloc(strplmapsize)
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strpool = heapalloc(strplsize)
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fin
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strplmapsize = strplsize / 128
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strpoolmap = heapalloc(strplmapsize)
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strpool = heapalloc(strplsize)
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memset(strpoolmap, strplmapsize, 0)
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memset(strlinbuf, @nullstr, MAXLINESSIZE*2)
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memset(strpoolmap, 0, strplmapsize)
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numlines = 1
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cursrow = 0
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curscol = 0
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@ -314,7 +312,7 @@ def txtupper#0
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flags = flags | uppercase
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for i = numlines - 1 downto 0
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strupper(strlinbuf:[i])
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strupper(strlinbuf=>[i])
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next
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end
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def txtlower#0
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@ -322,34 +320,9 @@ def txtlower#0
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flags = flags & ~uppercase
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for i = numlines - 1 downto 0
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strlower(strlinbuf:[i])
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strlower(strlinbuf=>[i])
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next
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end
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def print(i)#0
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byte numstr[7]
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byte place, sign
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place = 6
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if i < 0
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sign = 1
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i = -i
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else
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sign = 0
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fin
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while i >= 10
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numstr[place] = i % 10 + '0'
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i = i / 10
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place--
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loop
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numstr[place] = i + '0'
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place--
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if sign
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numstr[place] = '-'
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place--
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fin
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numstr[place] = 6 - place
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puts(@numstr[place])
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end
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def nametostr(namestr, len, strptr)#0
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^strptr = len
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memcpy(strptr + 1, namestr, len)
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@ -360,15 +333,15 @@ end
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def readtxt(filename)#0
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byte txtbuf[81], refnum, i, j
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refnum = fileio:open(filename)
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if refnum
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newline(refnum, $7F, $0D)
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refnum = fileio:open(filename)
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fileio:newline(refnum, $7F, $0D)
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repeat
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txtbuf = fileio:read(refnum, @txtbuf + 1, MAXLNLEN)
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if txtbuf
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sethibit(@txtbuf)
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if flags & uppercase; strupper(@txtbuf); fin
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strlinbuf:[numlines] = newstr(@txtbuf)
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strlinbuf=>[numlines] = newstr(@txtbuf)
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numlines++
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fin
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if !(numlines & $0F); putc('.'); fin
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@ -377,8 +350,8 @@ def readtxt(filename)#0
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//
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// Make sure there is a blank line at the end of the buffer
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//
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if numlines < MAXLINES and strlinbuf:[numlines - 1] <> @nullstr
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strlinbuf:[numlines] = @nullstr
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if numlines < MAXLINES and strlinbuf=>[numlines - 1] <> @nullstr
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strlinbuf=>[numlines] = @nullstr
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numlines++
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fin
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fin
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@ -397,12 +370,12 @@ def writetxt(filename)#0
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//
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// Remove blank lines at end of text.
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//
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while numlines > 1 and strlinbuf:[numlines - 1] == @nullstr; numlines = numlines - 1; loop
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while numlines > 1 and strlinbuf=>[numlines - 1] == @nullstr; numlines = numlines - 1; loop
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//
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// Write all the text line to the file.
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//
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for i = 0 to numlines - 1
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cpyln(strlinbuf:[i], @txtbuf)
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cpyln(strlinbuf=>[i], @txtbuf)
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txtbuf = txtbuf + 1
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txtbuf[txtbuf] = $0D
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fileio:write(refnum, @txtbuf + 1, txtbuf)
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@ -429,17 +402,16 @@ def drawrow(row, ofst, strptr)#0
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if numchars >= 40
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numchars = 40
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else
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memset(scrnptr + numchars, 40 - numchars, $A0A0)
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memset(scrnptr + numchars, $A0A0, 40 - numchars)
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fin
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memcpy(scrnptr, strptr + ofst + 1, numchars)
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end
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def drawscrn(toprow, ofst)#0
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byte row, numchars
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word strptr, scrnptr
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if ofst
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for row = 0 to 23
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strptr = strlinbuf:[toprow + row]
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strptr = strlinbuf=>[toprow + row]
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scrnptr = txtscrn[row]
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if ofst >= ^strptr
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numchars = 0
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@ -449,19 +421,19 @@ def drawscrn(toprow, ofst)#0
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if numchars >= 40
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numchars = 40
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else
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memset(scrnptr + numchars, 40 - numchars, $A0A0)
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memset(scrnptr + numchars, $A0A0, 40 - numchars)
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fin
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memcpy(scrnptr, strptr + ofst + 1, numchars)
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next
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else
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for row = 0 to 23
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strptr = strlinbuf:[toprow + row]
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strptr = strlinbuf=>[toprow + row]
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scrnptr = txtscrn[row]
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numchars = ^strptr
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if numchars >= 40
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numchars = 40
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else
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memset(scrnptr + numchars, 40 - numchars, $A0A0)
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memset(scrnptr + numchars, $A0A0, 40 - numchars)
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fin
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memcpy(scrnptr, strptr + 1, numchars)
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next
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@ -608,10 +580,27 @@ end
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// Keyboard routines
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//
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def keyin2e
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byte key
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repeat
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cursflash
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until ^keyboard >= 128
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return ^keystrobe
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key = ^keyboard
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until key >= 128
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^keystrobe
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if ^pushbttn2 & 128 // Closed Apple pressed
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when key
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is keyarrowleft
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key = keyctrla; break
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is keyarrowright
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key = keyctrls; break
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is keyarrowup
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key = keyctrlw; break
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is keyarrowdown
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key = keyctrlz; break
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is keyenter
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key = keyctrlf; break
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wend
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fin
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return key
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end
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def keyin2
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byte key
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@ -661,7 +650,7 @@ def printtxt(slot)#0
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scrncsw = *csw
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*csw = $C000 | (slot << 8)
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for i = 0 to numlines - 1
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cpyln(strlinbuf:[i], @txtbuf)
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cpyln(strlinbuf=>[i], @txtbuf)
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puts(@txtbuf)
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putln
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next
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@ -669,8 +658,8 @@ def printtxt(slot)#0
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end
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def openline(row)
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if numlines < MAXLINES
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memcpy(@strlinbuf:[row + 1], @strlinbuf:[row], (numlines - row) * 2)
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strlinbuf:[row] = @nullstr
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memcpy(@strlinbuf=>[row + 1], @strlinbuf=>[row], (numlines - row) * 2)
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strlinbuf=>[row] = @nullstr
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numlines++
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flags = flags | changed
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return TRUE
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@ -680,8 +669,8 @@ def openline(row)
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end
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def cutline#0
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delstr(cutbuf)
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cutbuf = strlinbuf:[cursrow]
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memcpy(@strlinbuf:[cursrow], @strlinbuf:[cursrow + 1], (numlines - cursrow) * 2)
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cutbuf = strlinbuf=>[cursrow]
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memcpy(@strlinbuf=>[cursrow], @strlinbuf=>[cursrow + 1], (numlines - cursrow) * 2)
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if numlines > 1
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numlines--
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fin
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@ -693,8 +682,8 @@ def cutline#0
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end
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def pasteline#0
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if cutbuf and numlines < MAXLINES
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memcpy(@strlinbuf:[cursrow + 1], @strlinbuf:[cursrow], (numlines - cursrow) * 2)
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strlinbuf:[cursrow] = newstr(cutbuf)
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memcpy(@strlinbuf=>[cursrow + 1], @strlinbuf=>[cursrow], (numlines - cursrow) * 2)
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strlinbuf=>[cursrow] = newstr(cutbuf)
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numlines++
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flags = flags | changed
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redraw
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@ -706,16 +695,16 @@ def joinline#0
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byte joinstr[80], joinlen
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if cursrow < numlines - 1
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strcpy(@joinstr, strlinbuf:[cursrow])
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joinlen = joinstr + ^(strlinbuf:[cursrow + 1])
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strcpy(@joinstr, strlinbuf=>[cursrow])
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joinlen = joinstr + ^(strlinbuf=>[cursrow + 1])
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if joinlen < 80
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memcpy(@joinstr + joinstr + 1, strlinbuf:[cursrow + 1] + 1, ^(strlinbuf:[cursrow + 1]))
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memcpy(@joinstr + joinstr + 1, strlinbuf=>[cursrow + 1] + 1, ^(strlinbuf=>[cursrow + 1]))
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joinstr = joinlen
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delstr(strlinbuf:[cursrow])
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strlinbuf:[cursrow] = newstr(@joinstr)
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delstr(strlinbuf:[cursrow + 1])
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delstr(strlinbuf=>[cursrow])
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strlinbuf=>[cursrow] = newstr(@joinstr)
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delstr(strlinbuf=>[cursrow + 1])
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numlines--
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memcpy(@strlinbuf:[cursrow + 1], @strlinbuf:[cursrow + 2], (numlines - cursrow) * 2)
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memcpy(@strlinbuf=>[cursrow + 1], @strlinbuf=>[cursrow + 2], (numlines - cursrow) * 2)
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flags = flags | changed
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redraw
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else
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@ -728,19 +717,19 @@ def splitline#0
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if openline(cursrow + 1)
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if curscol
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splitlen = ^(strlinbuf:[cursrow])
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splitlen = ^(strlinbuf=>[cursrow])
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if curscol < splitlen - 1
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memcpy(@splitstr + 1, strlinbuf:[cursrow] + curscol + 1, splitlen - curscol)
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memcpy(@splitstr + 1, strlinbuf=>[cursrow] + curscol + 1, splitlen - curscol)
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splitstr = splitlen - curscol
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strlinbuf:[cursrow + 1] = newstr(@splitstr)
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memcpy(@splitstr + 1, strlinbuf:[cursrow] + 1, curscol)
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strlinbuf=>[cursrow + 1] = newstr(@splitstr)
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memcpy(@splitstr + 1, strlinbuf=>[cursrow] + 1, curscol)
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splitstr = curscol
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delstr(strlinbuf:[cursrow])
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strlinbuf:[cursrow] = newstr(@splitstr)
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delstr(strlinbuf=>[cursrow])
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strlinbuf=>[cursrow] = newstr(@splitstr)
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fin
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else
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strlinbuf:[cursrow + 1] = strlinbuf:[cursrow]
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strlinbuf:[cursrow] = @nullstr
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strlinbuf=>[cursrow + 1] = strlinbuf=>[cursrow]
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strlinbuf=>[cursrow] = @nullstr
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fin
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curscol = 0
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cursx = 0
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@ -767,10 +756,10 @@ def editline(key)
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if (editkey(key))
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flags = flags | changed
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memset(@editstr, 80, $A0A0)
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strcpy(@editstr, strlinbuf:[cursrow])
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undoline = strlinbuf:[cursrow]
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strlinbuf:[cursrow] = @editstr
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memset(@editstr, $A0A0, 80)
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strcpy(@editstr, strlinbuf=>[cursrow])
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undoline = strlinbuf=>[cursrow]
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strlinbuf=>[cursrow] = @editstr
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repeat
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if key >= keyspace
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if key == keydelete
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@ -843,9 +832,9 @@ def editline(key)
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key = keyin()
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until not editkey(key)
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if editstr
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strlinbuf:[cursrow] = newstr(@editstr)
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strlinbuf=>[cursrow] = newstr(@editstr)
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else
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strlinbuf:[cursrow] = @nullstr
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strlinbuf=>[cursrow] = @nullstr
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fin
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delstr(undoline)
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fin
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@ -880,7 +869,7 @@ def editmode#0
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pasteline; break
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is keyctrlf
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if numlines < MAXLINES and cursrow == numlines - 1
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strlinbuf:[numlines] = @nullstr
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strlinbuf=>[numlines] = @nullstr
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numlines++
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fin
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cursdown
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@ -919,7 +908,9 @@ def editmode#0
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is keyescape
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cursoff
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cmdmode
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redraw
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if not exit
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redraw
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fin
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break
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wend
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until exit
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@ -1023,7 +1014,7 @@ def cmdmode#0
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clrscrn
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puts("PLASMA ][ EDITOR VERSION 0.99\n")
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while not exit
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puts(@txtfile)
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puts(@filename)
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cmdptr = gets($BA)
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when toupper(parsecmd(cmdptr))
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is 'A'
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@ -1034,17 +1025,17 @@ def cmdmode#0
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if chkchng
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inittxtbuf
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numlines = 0
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strcpy(@txtfile, cmdptr)
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readtxt(@txtfile)
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strcpy(@filename, cmdptr)
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readtxt(@filename)
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if numlines == 0; numlines = 1; fin
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flags = flags & ~changed
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fin
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break
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is 'W'
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if ^cmdptr
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strcpy(@txtfile, cmdptr)
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strcpy(@filename, cmdptr)
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fin
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writetxt(@txtfile)
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writetxt(@filename)
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//if flags & changed; fin
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flags = flags & ~changed
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break
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@ -1068,7 +1059,7 @@ def cmdmode#0
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is 'N'
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if chkchng
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inittxtbuf
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strcpy(@txtfile, "UNTITLED")
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strcpy(@filename, "UNTITLED")
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fin
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break
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otherwise
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@ -1088,21 +1079,22 @@ end
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//
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// Init editor
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//
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if !(^MACHID & $80)
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if !(MACHID & $80)
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flags = uppercase | shiftlock
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keyin = @keyin2
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else
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keyin = @keyin2e
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fin
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inittxtbuf
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if ^argNext(argFirst)
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strcpy(@txtfile, cmdline)
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puts(@txtfile)
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arg = argNext(argFirst)
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if arg
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strcpy(@filename, arg)
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puts(@filename)
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numlines = 0
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readtxt(@txtfile)
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readtxt(@filename)
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fin
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curschr = '+'
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flags = flags | insmode
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flags = flags | insmode
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drawscrn(scrntop, scrnleft)
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curson
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editmode
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