patb/tf
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

added btree data dump

Browse Source
This commit is contained in:
Pat Beirne
2021-07-29 15:13:45 -04:00
parent 7c246a73dc
commit baffd3bf31
2 changed files with 30 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
README.md
View File

@@ -122,13 +122,12 @@ In its present form, the module has these limitations:
* filenames are limited to 255 chars
* file contents must be text
* or have a `\n` at least every 4096 characters
* `sed()` requires lines <=2048 characters, and this `sed()` won't match binary chars
* `sed()` requires lines <=2048 characters, and this `sed()` will not match binary chars
* in the simple shell
* filenames must not have spaces
* patterns with spaces ***must*** be quoted
* the target of `cp` and `mv` *cannot* be a simple a directory-name as in Linux; write the whole filename *w.r.t,* the current directory
* for the `sed` function and command, the
[search](https://docs.micropython.org/en/latest/library/ure.html) pattern can have wildcards like ``\s`, `\w` and `\d`. The replace pattern cannot have *any* of these, and can only have `\0`, `\1`, etc
* the target of `cp` and `mv` *cannot* be a simple a directory-name as in Linux; write the whole filename *w.r.t* the current directory
* for the `sed` function and command, the [search](https://docs.micropython.org/en/latest/library/ure.html) pattern can have wildcards like ``\s`, `\w` and `\d`. The replace pattern cannot have *any* of these, and can only have `\0`, `\1`, etc
* search patterns involving \ escapes other than those and `\'` probably won't work
* the complexity of pattern matching is limited.
* try to format the grep patterns so they avoid deep stack recursion. For example, `([^#]|\\#)\s*` has a very generous search term as the first half, and can cause deep-stack recursion. The equivalent `(\\#|[^#])\s*` is more likely to succeed.
@@ -230,6 +229,7 @@ exec <python-filename> # execute a small python file
free # display the heap size: used + free
wc <filename> # display the line count, word count and bytes
less/more [-n] <filename> # similar to cat, but displays 30 lines at a time
btree <filename> # display the content of a BTREE database
```
Synonyms: `ip = ifconfig`, `more = less`, `dig = nslookup = host`

30
tf_extend.py
View File

@@ -1,4 +1,4 @@
import os,sys,network,socket,time,machine,gc,tf
import os,sys,network,socket,time,machine,gc,tf,btree
# these helper classes let us use the tf.transfer() iterator,
# by intercepting the .write()
@@ -81,12 +81,33 @@ def cmd(args):
print("ch: {}\tRSSI: {}\t{}\tSSID: {}".format(i[2],i[3],"open" if i[4]==0 else "",i[0]))
elif cmd=='freq':
if len(args)==1 or args[1] in ("160","80"):
# identify esp32 or esp8266
try: # is this esp8266
machine.TouchPad
freqs=("160","80","240")
except AttributeError:
freqs=("160","80")
if len(args)==1 or args[1] in freqs:
if len(args)>1:
machine.freq(int(args[1])*1000000)
print("master cpu frequency {}MHz".format(machine.freq()//1000000))
else:
print("syntax: freq [ 160 | 80 ]")
print("syntax: freq [ 160 | 80 | 240 ] ")
elif cmd=='btree':
try:
f=open(args[1])
b=btree.open(f)
print("Key\t\tValue")
i=0
for w in b:
print("{}\t{}".format(w,b[w]))
i+=1
if i%30==0:
r=input("continue? ")
if r=='n': break
except OSError:
print("file not found or is not a btree database")
elif cmd=='exec':
try:
@@ -99,9 +120,10 @@ def cmd(args):
print("==Extended commands")
print(" connect <essid> <password> \tscan")
print(" ifconfig/ip \t\thost/dig/nslookup <domain.name>")
print(" freq [ 160 | 80 ] \t\texec <python-filename>")
print(" freq [160 | 80 | 240]\texec <python-filename>")
print(" free \t\t\twc <filename>")
print(" less/more [-n] <filename>")
print(" bt-list <filename>")
else: # command not found
return False
return True